Sarnia Fire and Rescue was called to a fire around mid-morning Tuesday.
Firefighters responded to a row-house on Ross Avenue near Carleton Place for a basement fire.
No injuries were reported, but fire officials said two cats were rescued and are doing well.
Officials said on Wednesday, the fire was caused by a malfunctioning appliance and was classified as accidental.
Damage was estimated at $50,000.
https://twitter.com/SarniaFire/status/1587451029917933568