SYDNEY: More than 670 people are believed to have died in a massive landslide in Papua New Guinea, the UN migration agency said on Sunday, as rescue efforts continued. Media in the South Pacific nation, north of Australia, had previously estimated Friday’s landslide had buried more than 300 people. However, more than 48 hours later, the International Organization for Migration (IOM) said the death toll could more than double, as the full extent of the disaster is still unclear and continuing dangerous conditions on the ground are hampering aid and rescue efforts. . Only five bodies had been recovered from