ONE of the world's last Stone Age tribes has murdered two fishermen whose boat drifted on to a desert island in the Indian Ocean.

The Sentinelese, thought to number between 50 and 200, have rebuffed all contact with the modern world, firing a shower of arrows at anyone who comes within range.

They are believed to be the last pre-Neolithic tribe in the world to remain isolated and appear to have survived the 2004 Asian tsunami.