A Sumatran tiger attacked and killed a palm oil plantation worker in Indonesia, a conservation official said Tuesday, underlining the growing problem of human-animal conflicts.

Animals including tigers and elephants are coming into closer contact with people in Indonesia as forests are destroyed for timber or to make way for crops such as palm oil.

The 18-year-old female worker was killed Friday in the village of Indragiri Hulu, in Sumatra province, said provincial conservation agency chief Bambang Dahono Aji.

"Some of her co-workers were there when the tiger attacked the worker and tore her apart," he said.

He added that about two weeks ago a Sumatran tiger was killed in the vicinity after getting snared in a trap villagers set to catch wild boars.

Estimates of the number of Sumatran tigers remaining in the world range from 300 to 400. Several die each year as a result of traps, poaching or other human actions.