Sarnia Fire and Rescue Service responded to a house fire on Cameron Street at mid-morning Saturday.
Firefighters and police remained on scene well into the afternoon near Mitton Street.
The fire service reported in a tweet at noon that the blaze was under control.
Crews from @SarniaFire and @SarniaPolice are on scene of a house fire at Mitton and Cameron streets. Fire is under control. Please avoid the area temporarily. Cameron is closed between Mitton and Forsyth. pic.twitter.com/OOwzvzIQo0
— Sarnia Fire Rescue (@SarniaFire) October 13, 2018
Sarnia Fire and Rescue said the cause of the fire has been declared undetermined by the Fire Marshall because the house was structurally unfit to investigate.
The damage is described as a total loss.
There was no one in the vacant house at the time of the blaze.