Papua New Guinea police are yet to interview any suspects over the murder of an asylum seeker at Australia's Manus Island detention centre more than five months ago.
Fairfax media reports a PNG police spokesperson saying the investigation into Reza Barati's death during two nights of violent clashes in February was ongoing and no one had been interviewed or charged.
An Australian-government inquiry, and a former police prosecutor who was recently sacked by the PNG Prime Minister, have both said that a Salvation Army worker was responsible for the death.
Australia's Immigration minister, Scott Morrison, has refused to comment on the progress of the investigation.
During a Senate Inquiry into Mr Berati's death last week, it was revealed that no asylum seekers have been taken to Manus Island since the violence in February.