One of the most isolated tribes in the world has been photographed in the most detailed pictures ever taken of them. The images of the Mashco Piro tribe, released by Survival International, have sparked the world's imagination.

The once "lost" tribe live in the jungles of southeastern Peru, near the Manu National Park and are hostile to outsiders. They have been blamed for a number of attacks.

Rebecca Spooner, a Peru campaigner with Survival International, speaks to Al Jazeera from London.