The people of North Sentinel Island, in the Bay of Bengal, are one of the most uncontacted groups in the world. They are likely to have been isolated on this small island for around 60,000 years, and have so far resisted all attempts to communicate with the outside world - often violently. These attempts at contact have now largely ended, in order to protect the tribe from disease. Very little is known about them. Like other Andamanese groups, they are understood to be hunter-gatherers, but their language and culture is unknown, as is the number of individuals who live on the island.
In 2006, the islanders were responsible for killing two fishermen who were poaching illegally in the area. Efforts to reclaim the bodies were thwarted when a shower of arrows was fired at a helicopter, forcing the pilot to abandon his landing. An article about these events can be found here, and an introduction to the people of North Sentinel can be found by clicking the image below.