Schreiber detachment OPP officers are investigating what they're calling a sudden death in Terrace Bay.
Officers were called to the scene of a house fire just before 10 a.m. Wednesday.
The body of a woman was found inside.
The victim, who was a resident of the home, has been identified as 65-year-old Ann-Lois Mercure.
The Northwest crime unit, the forensic identification unit and the Ontario Fire Marshall's Office are investigating.
