The Independent article I linked specifies that it's talking about the Sentinelese of North Sentinel Island. The account it gives is from a researcher who was i

The Independent article I linked specifies that it's talking about the Sentinelese of North Sentinel Island. The account it gives is from a researcher who was involved in the contact efforts the Wikipedia article you link briefly mentions in the paragraph that begins, "In the early 1990s. . . " Also, look at the Wikipedia page for North Sentinel Island. The two articles give different lists of encounters with the Sentinelese that are only partially overlapping.