Authorities in northwestern Minnesota have identified the man found dead in a house fire last last week.

Investigators found the body of Robert Torkelson, 66, of Hendrum, on April 21 after a fire broke out at his house. The fire reportedly started on a living room couch and appeared to be ignited by smoking materials.

Officials took the body to the University of North Dakota Department of Forensic Pathology in Grand Forks for an autopsy. Results are pending.

The incident remains under investigation.