© Ergaki ParkA bear attacked and killed a 16-year-old boy before eating his body
Two other tourists were confronted by the ferocious predator nine hours later when they went to look for the 16-year-old tour guide and were confronted by the bear who lunged at them.
One of the men managed to stab the animal in the neck with a pen knife several times before playing-dead and the other rushed back to raise the alarm.
Inspectors at Ergaki National Park made a grim discovery when they discovered the bear lying on the 16-year-old boy's half-eaten body some 500 yards from the tourist camp in the Sayan Mountains.
Comment: See in addition: Bear attacks increasing worldwide