Sarnia firefighters saved a woman who was asleep when a fire broke out early Friday morning in the area of Germain Street and Montcalm Avenue.
Public Education Officer Mike Otis said crews were called at 3:05 a.m.
"It looks like it was a garage fire that spread into the house," he said. "We had to battle back flames and there was zero visibility to get in there and rescue her. I think she was taken to hospital for precautions."
In an update posted to social media, Sarnia Fire Rescue said she has since been released.
A damage estimate and cause were not immediately available.
As of 11 a.m., crews were still at the scene investigating.