Recent photos of an "uncontacted tribe" of Indians near the Brazil-Peru border have sparked media reports of a hoax, but the organization that released the images defends its claims and actions. The photographs, which showed men painted red and black and aiming arrows skyward, were released in late May by Survival International, a London-based organization that advocates for tribal people worldwide. The release stated that "members of one of the world's last uncontacted tribes have been spotted and photographed from the air,"