North Sentinel Island remains one of the most mysterious unexplored islands in the world.
North Sentinel Island is one of the Andaman Islands in the Bay of Bengal. It lies to the west of the southern part of South Andaman Island. Most of the island is forested. It is small, located away from the main settlements on Great Andaman, surrounded by coral reefs, and lacks natural harbors.
A group of indigenous people, the Sentinelese, live on North Sentinel Island. Their population is estimated to be between 50 and 400 individuals. The Sentinelese reject any contact with other people, and are among the last people to remain virtually untouched by modern civilization.
Odd stories have now started to spread concerning mysterious and strange activities.
On 2 August 1981, the ship Primrose grounded on the North Sentinel Island reef. A few days later, crewmen on the immobile vessel observed that small black men were carrying spears and arrows and building boats on the beach to attack them with.
The captain of the Primrose radioed for an urgent drop of firearms so the crew could defend themselves, but did not receive them.
Heavy seas kept the islanders away from the ship. After a week, the crew were rescued by a helicopter working under contract to the Indian Oil And Natural Gas Commission (ONGC).
The Sentinelese apparently survived the 2004 Indian Ocean earthquake and its after-effects, including the tsunami and the uplifting of the island. Three days after the event, an Indian government helicopter observed several of them, who shot arrows and threw stones at the hovering aircraft with the apparent intent of repelling it