At least 670 people are feared to have been killed by a landslide in Papua New Guinea, an International Organization for Migration (IOM) official said on Sunday. Serhan Aktoprak, the IOM’s head of mission for the Pacific country, told Australian broadcaster ABC that the scale of the impact was much greater than initially thought. Several villages in the province of Enga were hit when part of a mountain collapsed in the early hours of Friday in the remote central highlands of Papua New Guinea. More than 4,000 people live in the affected area, according to reports, although it is unclear how man…