The administrator of the autonomous Papua New Guinea region of Bougainville , Peter Tsiamalili, has died at the age of 54.
Mr Tsiamalili died while asleep in his village home in Amun along the west coast of Bougainville.
The cause of his death is not known.
His will be flown to Port Moresby for a post mortem.
Bougainville's President, Joseph Kabui, confirmed Mr Tsiamalili's death and said the people of Bougainville and the administration had lost one of their most important public servants