JOHNSTOWN, Pa. (AP) – The Cambria County Coroner’s Office has confirmed three people have died in a Johnstown house fire overnight.

But the coroner, police and fire officials are not releasing any other information on the fire that broke out about 12:30 a.m. Monday on a hillside near Memorial Medical Center.

A coroner’s secretary says officials have been trying to confirm the identities of those killed using dental records.

A state police fire marshal and accelerant-sniffing dog have been at the scene, searching for clues about what caused the fire.

A fourth person was taken to the nearby hospital, but their name and condition have not been released.