The soldier then distributed the meat to villagers before taking the tiger's pelt home with him.

"It was sadistic," said Bastoni, adding that his organisation intends to file a complaint with the Indonesian army.

According to the World Wide Fund for Nature (WWF) the Sumatran tiger is the most critically endangered tiger subspecies in the world and the only one to survive in the wild in Indonesia.

The WWF says that while legislation exists to help protect the Sumatran tiger, unless those laws are enforced accelerating rates of deforestation and rampant poaching mean the animals' future is bleak.