Papua New Guinea's Prime Minister, Sir Michael Somare, has called for a full investigation into the crash of a plane with 13 people aboard on their way to the Kokoda Track.
Nine Australians, three Papua New Guineans and a Japanese were aboard the aircraft that went down on Tuesday near the town of Isurava, at a height of 1600 metres in the Owen Stanley Ranges.
Airlines PNG confirmed its plane was found early this morning and that a helicopter crew had reported the site showed no immediate signs of activity.
Sir Michael expressed great sadness over the crash and extended his sympathies to the families of the crew and passengers on board.
He says he has requested the ministers of the various responsible authorities to commence investigations into the accident and to furnish a report to Cabinet.