The Avia Star aircraft was en route from the capital Jayapura to Wamena district, carrying cargo and four crew members. It crashed at about 7 a.m. on Pike Mountain, said Papua police chief Bagus Eko Danto.

Two bodies have been found so far and a search was underway for the other two.

The cause of the accident was not immediately known.

It was the second fatal air crash this week in Indonesia. On Monday, a Fokker F-27 belonging to the Indonesian Air Force crashed in West Java’s Bandung airport, killing all 24 people on board.