State officials have tentatively identified the two people who died in an apartment fire on Portland’s Munjoy Hill on Sunday.

Firefighters recovered the bodies of Nicole Niehoff, 45, and Jake Millett, 40, from the three-story, four-unit building on St. Lawrence Street that caught fire early Sunday, the Office of the State Fire Marshal said in a statement Tuesday.

The investigation is active and the identities have yet to be confirmed by the medical examiner’s office, the statement said.

Authorities have not said what caused the fire. State investigators “are confident that no foul play is suspected” and their preliminary findings indicate the fire started on the rear, second-floor porch area before spreading inside, according to the release.

The now-condemned building at 43 St. Lawrence St. was significantly damaged, according to authorities.