Police in Papua New Guinea (PNG) have entered a former Australian-run detention centre in a bid to get asylum seekers who remain there to leave.
Hundreds of men have refused to leave the Manus Island centre since it was shut down on 31 October, citing fears for their safety.
On Thursday, men inside the camp said that PNG police had given them a one-hour deadline to leave. One refugee, a journalist, was reportedly arrested.
Australia said it was a PNG operation.
Under a controversial policy, Australia has detained asylum seekers who arrive by boat in camps on Manus Island and Nauru, a small Pacific nation.
Australia shut down the Manus Island centre after a PNG court ruled it was unconstitutional, urging asylum seekers to move to transit centres elsewhere on the island.