The land is still sliding and rescue is difficult, the head of the UN migration agency says.

About 670 people are estimated to be buried under a massive landslide in Papua New Guinea, a UN official says.

The head of the International Organization for Migration in Papua New Guinea, Serhan Aktoprak, said the impact of Friday’s landslide in the country’s isolated Enga province was greater than initially thought.

“There are an estimated 150-plus houses now buried,” Mr Aktoprak said.