Sumatran tigers are Critically Endangered, with as few as 400 left in the wild Washington, DC (Vocus/PRWEB) March 14, 2011 A suspected tiger smuggler has been arrested in Sumatra, Indonesia, following a three-day operation by the Natural Resource Conservation Agency (BKSDA) in Riau and West Sumatra provinces, with support from World Wildlife Fund-Indonesia’s (WWF) Tiger Protection Units.

Infrared footage has shown a rare tiger roaming in protected forests on Indonesia's Sumatra island, which conservationists claim to have been illegally cleared.

Environmental group WWF said on Monday that poachers might have used pineapples to poison and kill an endangered Sumatran elephant for its tusk.

A report said on Tuesday that three dead elephants were suspected of being poisoned in the forest concession area of a pulp company in the Riau province of Indonesia's Sumatra island.

Severe fires in Indonesia – responsible for some of the worst air quality conditions worldwide – are linked not only to drought, but also to changes in land use and population density.