JAYAPURA: A worker for a contractor of copper and gold producer PT Freeport Indonesia (FI) died on Saturday after inhaling allegedly poisonous gas. Three others were treated at Tembagapura Hospital in Mimika.

“The accident took place underground at PT FI’s working area in Cross Cut 25 Amole,” Sr. Comr. I Gede Sumerta Jaya of Papua Provincial Police told The Jakarta Post on Sunday.

The dead man was named as Donny Asmond. Awa Mardiana, Heri Purwanto and Pahma were still being treated at the hospital.

PT FI spokesman Ramdani Sirait said that there had been a drop in the oxygen level in the mine. The company is seeking the cause of the problem to prevent recurrence of problem.