Lubu people are an ethnic group who live in central

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...

. They are similar to the

Kubu people The Orang Batin Sembilan, Orang Rimba or Anak Dalam are mobile, animist peoples who live throughout the lowland forests of southeast Sumatra. Kubu is a Malay exonym ascribed to them. In the Malay language, the word Kubu can mean defensive fortif ...

, and are also ancestral to the Siladang people.''MELIRIK KEHIDUPAN WARGA SILADANG'' MEDAN BISNIS DAILY
They live in the mountainous regions of Padang Lawas, South Tapanuli, and Mandailing Natal regencies (all are located within North Sumatra Province jurisdictions). They are now in the process of being absorbed by the

Batak Batak is a collective term used to identify a number of closely related Austronesian peoples, Austronesian ethnic groups predominantly found in North Sumatra, Indonesia, who speak Batak languages. The term is used to include the Karo people ( ...

. In the early 20th century, they were a migratory people who lived in tree houses, and now are still a tribal people. Although they live near the rivers, they are fearful of water. They speak the Lubu language.

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