A letter bomb is an
explosive device sent via the
postal service
The mail or post is a system for physically transporting postcards, letters, and parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal sy ...
, and designed with the intention to injure or kill the recipient when opened. They have been used in
terrorist
Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
attacks such as those of the
Unabomber. Some countries have agencies whose duties include the interdiction of letter bombs and the investigation of letter bombings. The letter bomb may have been in use for nearly as long as the common postal service has been in existence, as far back as 1764 (''see
Examples
Example may refer to:
* ''exempli gratia'' (e.g.), usually read out in English as "for example"
* .example, reserved as a domain name that may not be installed as a top-level domain of the Internet
** example.com, example.net, example.org, a ...
'').
Description
Letter bombs are usually designed to explode immediately on opening, with the intention of seriously injuring or killing the recipient (who may or may not be the person to whom the bomb was addressed). A related threat is mail containing unidentified powders or chemicals, as in the
2001 anthrax attacks
The 2001 anthrax attacks, also known as Amerithrax (a portmanteau of "United States, America" and "anthrax", from its FBI case name), occurred in the United States over the course of several weeks beginning on September 18, 2001, one week after th ...
.
Use by suffragettes
One of, if not the first, groups to consistently use letter bombs on a wide scale were the British
suffragettes
A suffragette was a member of an activist women's organisation in the early 20th century who, under the banner "Votes for Women", fought for women's suffrage, the right to vote in public elections in the United Kingdom. The term refers in part ...
of the
Women's Social and Political Union
The Women's Social and Political Union (WSPU) was a women-only political movement and leading militant organisation campaigning for women's suffrage in the United Kingdom founded in 1903. Known from 1906 as the suffragettes, its membership and p ...
in the years before the
First World War
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
.
The group were the original inventors of a form of letter bomb designed to maim or kill politicians or opponents.
In 1913, numerous letter bombs were sent to politicians such as the
Chancellor
Chancellor () is a title of various official positions in the governments of many countries. The original chancellors were the of Roman courts of justice—ushers, who sat at the (lattice work screens) of a basilica (court hall), which separa ...
David Lloyd George and
Prime Minister
A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
H.H. Asquith, but they invariably all exploded in post offices, post boxes or in mailbags while in transit across the country.
Suffragettes also once attempted to
assassinate a judge they considered to be anti-
women's suffrage
Women's suffrage is the women's rights, right of women to Suffrage, vote in elections. Several instances occurred in recent centuries where women were selectively given, then stripped of, the right to vote. In Sweden, conditional women's suffra ...
, Sir
Henry Curtis-Bennett, with a letter-bomb made partly out of bullets, but the bomb was intercepted by London postal workers before it could reach him.
Patentability
Letter-bombs, along with
anti-personnel mine
An anti-personnel mine or anti-personnel landmine (APL) is a form of land mine, mine designed for use against human, humans, as opposed to an anti-tank mine, which target vehicles. APLs are classified into: blast mines and fragmentation mines; ...
s, are typical examples of
subject-matter excluded from patentability under the
European Patent Convention
The European Patent Convention (EPC), also known as the Convention on the Grant of European Patents of 5 October 1973, is a multilateral treaty instituting the European Patent Organisation and providing an autonomous legal system according to w ...
, because the publication or exploitation of such
invention
An invention is a unique or novelty (patent), novel machine, device, Method_(patent), method, composition, idea, or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It m ...
s are contrary to the "''
ordre public''" and/or
morality
Morality () is the categorization of intentions, Decision-making, decisions and Social actions, actions into those that are ''proper'', or ''right'', and those that are ''improper'', or ''wrong''. Morality can be a body of standards or principle ...
().
Examples

* What might be the first recorded case of a device broadly similar to a modern parcel bomb featured in the 18th century affair known as the
Bandbox Plot. On November 4, 1712, a bandbox (i.e. a lightweight hat-box) was sent to
Robert Harley, Earl of Oxford
Robert Harley, 1st Earl of Oxford and Earl Mortimer, Order of the Garter, KG Privy Council of Great Britain, PC Fellow of the Royal Society, FRS (5 December 1661 – 21 May 1724) was a British statesman of the late Stuart dynasty, Stuart and e ...
, the British
Lord Treasurer
The Lord High Treasurer was an English government position and has been a British government position since the Acts of Union of 1707. A holder of the post would be the third-highest-ranked Great Officer of State in England, below the Lord ...
. It contained a number of loaded and cocked
pistols, to whose triggers was attached a thread which would have made the pistols fire the moment the box was opened. The plot was foiled by the perspicacity of
Jonathan Swift
Jonathan Swift (30 November 1667 – 19 October 1745) was an Anglo-Irish writer, essayist, satirist, and Anglican cleric. In 1713, he became the Dean (Christianity), dean of St Patrick's Cathedral, Dublin, and was given the sobriquet "Dean Swi ...
, who happened to be visiting the Earl of Oxford. Swift, perceiving the thread, seized the package and cut the thread, thus disarming the device. The attack was laid at the door of the opposition
Whig party and threw enormous popular sympathy behind Harley. The precise perpetrators were never identified or apprehended.
* One of the world's first mail bombs is mentioned in the 18th century diary of Danish official and historian
Bolle Willum Luxdorph. His diary mainly consists of concise references to news from Denmark and abroad. In the entry for January 19, 1764, he writes the following: ''Colonel Poulsen residing at
Børglum Abbey was sent by mail a box. When he opens it, therein is to be found gunpowder and a firelock which sets fire unto it, so he became very injured.'' The entry for February 15 same year says: ''Colonel Poulsen receives a letter in German,
ayingthat soon the dose will be increased.'' It is referring to the dose of gunpowder in the box. The perpetrator was never found. In a later reference Luxdorph has found a mention of a similar bomb being used, also in 1764, but in
Savona in Italy.
* June 1889: Edward White, formerly an artist at
Madame Tussauds, was alleged to have sent a parcel bomb to John Theodore Tussaud after being dismissed.
* August 20, 1904: A Swedish man named sent a mail bomb to businessman
Karl Fredrik Lundin in
Stockholm
Stockholm (; ) is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden, as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately ...
. It was a box loaded with bullets and explosives.
* 1912–1914: During the
suffragette bombing and arson campaign
Suffragettes in Great Britain and Ireland orchestrated a bombing and arson campaign between the years 1912 and 1914. The campaign was instigated by the Women's Social and Political Union, Women's Social and Political Union (WSPU), and was a part ...
, British
suffragettes
A suffragette was a member of an activist women's organisation in the early 20th century who, under the banner "Votes for Women", fought for women's suffrage, the right to vote in public elections in the United Kingdom. The term refers in part ...
of the
Women's Social and Political Union
The Women's Social and Political Union (WSPU) was a women-only political movement and leading militant organisation campaigning for women's suffrage in the United Kingdom founded in 1903. Known from 1906 as the suffragettes, its membership and p ...
(WSPU) invented and then used a form of letter bomb to maim or kill political opponents during a concerted
terrorist
Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
campaign.
* 1915: Vice President of the United States
Thomas R. Marshall was the target of an assassination attempt by letter bomb.
* 1919: A series of package bombs were sent to officials, journalists, and others in the United States by the Galleanist anarchist faction there; this precipitated the 1919-1920 Red Scare.
* circa 1945: In the memoir of OSS operative Charles Fenn, he reported that the
OSS sent letter bombs to Japanese officers in Japanese occupied territories in Asia during WWII. According to
Elizabeth "Betty" McIntosh, Chinese spies working for the OSS reported that "this ploy has had quite some success blowing off the hands of Jap officers."
* 1946: Several British high officials, including Sir
Stafford Cripps
Sir Richard Stafford Cripps (24 April 1889 – 21 April 1952) was a British Labour Party (UK), Labour Party politician, barrister, and diplomat.
A wealthy lawyer by background, Cripps first entered Parliament at a 1931 Bristol East by-election ...
,
Ernest Bevin
Ernest Bevin (9 March 1881 – 14 April 1951) was a British statesman, trade union leader and Labour Party politician. He co-founded and served as General Secretary of the powerful Transport and General Workers' Union from 1922 to 1940 and ...
, and
Anthony Eden
Robert Anthony Eden, 1st Earl of Avon (12 June 1897 – 14 January 1977) was a British politician who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 1955 until his resignation in 1957.
Achi ...
received letter bombs apparently sent by the extreme
Zionist
Zionism is an Ethnic nationalism, ethnocultural nationalist movement that emerged in History of Europe#From revolution to imperialism (1789–1914), Europe in the late 19th century that aimed to establish and maintain a national home for the ...
Stern Gang.
* 1947: Several letter bombs were sent to President
Harry Truman
Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt that year. Subsequen ...
in the White House. They were intercepted by White House mail room workers, who were on alert because of the letter bombs to British officials. These also were claimed by the Stern Gang.
* August 30, 1958: A parcel bomb sent by
Ngo Dinh Nhu, younger brother and chief adviser of South Vietnamese President
Ngo Dinh Diem, failed to kill
King Sihanouk of Cambodia.
* 1961: The
Nazi
Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...
war criminal
A war crime is a violation of the laws of war that gives rise to individual criminal responsibility for actions by combatants in action, such as intentionally killing civilians or intentionally killing prisoners of war, torture, taking hostage ...
Alois Brunner received a letter bomb that caused the loss of an eye. In 1980 another letter bomb cost him the fingers of his left hand. Two Damascus postal workers were killed. The senders are unknown but some suspect the Israeli intelligence agency
Mossad
The Institute for Intelligence and Special Operations (), popularly known as Mossad ( , ), is the national intelligence agency of the Israel, State of Israel. It is one of the main entities in the Israeli Intelligence Community, along with M ...
.
[Catherine Desplanque]
Petite biographie d'Alois Brunner/
/ref>
* November 27, 1962: A parcel sent to rocket scientist exploded in his office in Egypt
Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
when opened, injuring his secretary. Another parcel sent to the Heliopolis rocket factory killed five Egyptian workers.
* 1960s, 1970s and early 1980s: Several terrorist organizations in Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
such as Montoneros and ERP included letter bombs into their weaponry.
* December 28, 1977: In Malta
Malta, officially the Republic of Malta, is an island country in Southern Europe located in the Mediterranean Sea, between Sicily and North Africa. It consists of an archipelago south of Italy, east of Tunisia, and north of Libya. The two ...
, Karin Grech, age 15, was killed when she opened a letterbomb addressed to her father Edwin Grech. On the same day, another bomb was sent to Labour MP Dr. Paul Chetcuti Caruana, but it did not detonate.
* 1978 to 1995: Theodore Kaczynski, the "UNAbomber", killed three and injured 23 in a series of mail bombings in the United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
.
* August 27, 1980: Lyda Monteiro da Silva, secretary of Brazilian Bar Association, was killed by a letter bomb sent by anti-communist army members against the end of military dictatorship in Brazil
The military dictatorship in Brazil (), occasionally referred to as the Fifth Brazilian Republic, was established on 1 April 1964, after a 1964 Brazilian coup d'état, coup d'état by the Brazilian Armed Forces, with support from the United Stat ...
.
* August 17, 1982: Ruth First, a South Africa
South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
n communist
Communism () is a sociopolitical, philosophical, and economic ideology within the socialist movement, whose goal is the creation of a communist society, a socioeconomic order centered on common ownership of the means of production, di ...
anti-apartheid activist was killed by a parcel bomb mailed by the South African government to her home in Mozambique
Mozambique, officially the Republic of Mozambique, is a country located in Southeast Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Eswatini and South Afr ...
.
* June 28, 1984: Jeanette Schoon, a South African anti-apartheid activist and her 6-year-old daughter, Katryn Schoon, were killed by a letter bomb mailed by Craig Williamson, a spy for the South African Police who had been posing as a family friend. Jeanette Schoon collected and carried home a parcel bomb, which exploded upon opening the letter.
* August 1985: A woman in Rotorua
Rotorua () is a city in the Bay of Plenty region of New Zealand's North Island. It is sited on the southern shores of Lake Rotorua, from which it takes its name. It is the seat of the Rotorua Lakes District, a territorial authorities of New Zea ...
, New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
, Michele Sticovich, was instantly killed and a close friend of hers seriously injured after she opened a parcel addressed to her containing a number of sticks of gelignite
Gelignite (), also known as blasting gelatin or simply "jelly", is an explosive material consisting of collodion-cotton (a type of nitrocellulose or guncotton) dissolved in either nitroglycerine or nitroglycol and mixed with wood pulp and Potassi ...
. Mrs Sticovich's estranged husband, David Sticovich, was arrested and ultimately pleaded guilty to her murder.
* October 19, 1986: Dele Giwa, a Nigeria
Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...
n journalist and editor of the '' Newswatch'' magazine was killed with a mail bomb, claimed to be sent by Nigeria's former dictator, Gen. Ibrahim Babangida. The general has never admitted complicity, remaining mute on the issue.
* December 16, 1989: Robert Smith Vance, a U.S. federal judge, was killed instantly upon opening a letter bomb in the kitchen of his home in Birmingham, Alabama
Birmingham ( ) is a city in the north central region of Alabama, United States. It is the county seat of Jefferson County, Alabama, Jefferson County. The population was 200,733 at the 2020 United States census, 2020 census, making it the List ...
, with his wife, Helen, seriously injured. Walter Leroy Moody Jr was later convicted of killing both Vance and Georgia attorney Robbie Robinson by use of letter bombs delivered through the mail.
* 1990: Priest Michael Lapsley was sent a letter bomb by South African government's death squad, the Civil Cooperation Bureau, hidden inside two religious magazines. He lost both hands and the sight in one eye in the blast, and was seriously burned.
* Mid-1990s: Franz Fuchs, Austria
Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
n serial mail bomber, killed four and injured 15 with waves of mail bombs and improvised explosive devices
An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional warfare, conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached t ...
.
* January 1994: Roberto Escobar was sent a letter bomb while in jail by Medellin Cartel enemies.
* September 1996: Singer Björk
Björk Guðmundsdóttir ( , ; born 21 November 1965), known mononymously as Björk, is an Icelandic singer, songwriter, composer, record producer, and actress. Noted for her distinct voice, three-octave vocal range, and eccentric public per ...
was sent a letter bomb containing sulfuric acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, ...
by stalker Ricardo López. López then committed suicide. The bomb did not reach her, having been intercepted by the Metropolitan Police.
* February 2007: A series of mail bombings in the United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
injured nine people.
* January 2007: A bomber calling himself " The Bishop" sent several unassembled bombs to financial firms in the United States, and was arrested in April 2007.
* August 2007: A Lebanese immigrant, Adel Arnaout, was charged with sending three letter bombs out to residents in the Greater Ontario area.
* April 2011: Neil Lennon and two high-profile fans of Celtic F.C. were sent parcel bombs.
* February 2014: A series of seven letter bombs were sent to Armed Forces recruitment offices in the United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
, which bore all the hallmarks of Northern Ireland-related terrorism.
* September 2015: At least six people were killed and dozens injured in explosions at 15 locations in Liucheng County in China's Guangxi Zhuang Autonomous Region. The explosives were reportedly concealed inside express delivery packages.
* May 25, 2017: A suspected letter bomb exploded within the car of Lucas Papademos, former Prime Minister of Greece
The prime minister of the Hellenic Republic (), usually referred to as the prime minister of Greece (), is the head of government of the Greece, Hellenic Republic and the leader of the Cabinet of Greece, Greek Cabinet.
The officeholder's of ...
, causing injuries to Papademos, his driver and another official.
* July 28, 2017: A Queens, New York
Queens is the largest by area of the Boroughs of New York City, five boroughs of New York City, coextensive with Queens County, in the U.S. state of New York (state), New York. Located near the western end of Long Island, it is bordered by the ...
, landlord opened an explosive package resembling an oatmeal container which had been sitting on his building's doorstep for several days, and died from extensive burns four days later. The USPS refused immediate comment on whether the package was mailed, citing its ongoing investigation.
* March 2018: Multiple package bombs were detonated in Austin, Texas
Austin ( ) is the List of capitals in the United States, capital city of the U.S. state of Texas. It is the county seat and most populous city of Travis County, Texas, Travis County, with portions extending into Hays County, Texas, Hays and W ...
, over the course of a few weeks, killing 2 and seriously injuring 5. The perpetrator was subsequently identified as Mark Anthony Conditt of Pflugerville, Texas.
* October 2018: Multiple package bombs were sent to prominent critics of the Donald Trump administration. The first bomb discovered was delivered to billionaire financier and activist George Soros' home on October 22, 2018. Additional bombs were sent to other political figures and activists including: former President Barack Obama
Barack Hussein Obama II (born August 4, 1961) is an American politician who was the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American president in American history. O ...
; former President Bill Clinton
William Jefferson Clinton (né Blythe III; born August 19, 1946) is an American politician and lawyer who was the 42nd president of the United States from 1993 to 2001. A member of the Democratic Party (United States), Democratic Party, ...
and wife, former Secretary of State and 2016 presidential candidate Hillary Clinton
Hillary Diane Rodham Clinton ( Rodham; born October 26, 1947) is an American politician, lawyer and diplomat. She was the 67th United States secretary of state in the administration of Barack Obama from 2009 to 2013, a U.S. senator represent ...
; US Congresswoman Maxine Waters;[Package addressed to Rep. Maxine Waters prompts evacuation of South L.A. mail facility]
''Los Angeles Times'', October 24, 2018 CNN; former Attorney General Eric Holder; former Vice President Joe Biden
Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...
;[Two new pipe bombs said to target Joe Biden]
''Vice'', October 25, 2018 actor Robert De Niro
Robert Anthony De Niro ( , ; born August 17, 1943) is an American actor, director, and film producer. He is considered to be one of the greatest and most influential actors of his generation. De Niro is the recipient of List of awards and ...
also received bombs.[Similar Package Sent to Top Democrats Sent to Robert De Niro's NYC Home: Sources]
''NBC New York'', October 25, 2018
* November and December 2022: Multiple letter bombs were sent to high-profile institutions and locations across Spain, including the Prime Minister of Spain
The prime minister of Spain, officially president of the Government (), is the head of government of Spain. The prime minister nominates the Spanish government departments, ministers and chairs the Council of Ministers (Spain), Council of Mini ...
Pedro Sanchez, the Ukrainian embassy in Madrid
Madrid ( ; ) is the capital and List of largest cities in Spain, most populous municipality of Spain. It has almost 3.5 million inhabitants and a Madrid metropolitan area, metropolitan area population of approximately 7 million. It i ...
, and the Defence Ministry.
See also
* Bioterrorism
Bioterrorism is terrorism involving the intentional release or dissemination of biological agents. These agents include bacteria, viruses, insects, fungi, and/or their toxins, and may be in a naturally occurring or a human-modified form, in mu ...
* Bomb threat
* Email bomb
* Luke Helder
* Pipe bomb
Notes
References
External links
*
U.S. Postal Inspection Service - Mail Bombs
{{DEFAULTSORT:Letter Bomb
Terrorism tactics
Improvised explosive devices
Bombs
Terrorist incidents involving postal systems