Pekanbaru, Riau, Jan. 11 -- Indonesia's Riau conservation agency said it found Sumatran tiger tracks after a resident reported a close encounter with the critically endangered animal in a village in Siak District, raising concerns over potential human-wildlife conflict.

Ujang Holisudin, technical head of the Riau Natural Resources Conservation Agency (BBKSDA), said the witness reported seeing the tiger at about 7 p.m. local time on Thursday, January 8, prompting officers to verify conditions on the ground.

A field inspection on Friday found Sumatran tiger footprints measuring about 12 centimeters in an oil palm plantation operated by the Tinera Jaya cooperative in Teluk Masjid Village, Ujang said in a written statement issued in Pekanba...