MELBOURNE, Australia — More than 100 people are believed to have been killed Friday in a landslide that buried a village in a remote, mountainous part of Papua New Guinea, and an emergency response is underway, the South Pacific island nation’s leader and news media said.

The landslide reportedly hit Kaokalam village in Enga province, about 370 miles northwest of the capital, Port Moresby, at roughly 3 a.m. (1 p.m. Thursday ET), Australian Broadcasting Corp. reported.

Residents said…