GILLETTE, Wyo. (AP) — The state fire marshal is investigating after a man was found dead inside a mobile home on fire.

Firefighters in Gillette found the body around 3 a.m. Thursday as they fought the fire. Sheriff Bill Pownall told the Associated Press that he understands the man was found in a bed.

The home wasn't fully consumed in the fire. Fire chief Don Huber hopes that will help investigators determine how the fire started and how the man died.