The cause of the fire in downtown Sarnia Wednesday night is being listed as undetermined but is believed to be accidental in nature.
Sarnia Fire and Rescue were called to a structure fire just before 11:30 p.m. on Christina Street near Maria Street.
Officials said the fire was toward the back of the mixed-use building, which included a business and living quarters.
No injuries were reported, and a family cat was rescued from the blaze.
Sarnia Fire Rescue Public Education Officer Mike Otis said the damage estimate is expected to be over $250,000.
