Rangga Prakoso – Freeport-McMoRan Copper & Gold reported another death at its Grasberg mine in Papua on Sunday after a worker was seriously injured while conducting maintenance on an underground tunnel, a company official said.

Herman Wahid, a long-time truck driver at the Puncak Jaya mine, was working in a "Deep Orezone" – or DOZ underground mine – when he was injured in an work-related accident on Friday, a Freeport Indonesia official said. Herman was admitted to a nearby hospital in critical condition. He died on Sunday.

"The doctor fought to save his life," Freeport Indonesia President Director Rozik B. Sucipto said in a press statement. "We declare our deep condolences to the family. [Herman] left a wife and three children."

The company is investigating the cause of the accident, but said that the underground mine was likely not up to Freeport Indonesia safety standards for the handling of wet ore.

Friday's fatal accident occurred some two weeks after a tunnel collapse killed 28 miners during a safety training exercise on May 14. The two accidents are not related, Rozik said.

The Indonesian government ordered Freeport Indonesia to cease operations until investigators finish their report into the collapse. The US-based mining giant suspended operations for two weeks, but had restarted some activities at its open-pit mine last week.