Sarnia Fire and Rescue and city police responded to a fire at Jimmy B's restaurant in the 700-block of Confederation St. on Friday afternoon.
Crews were called to the scene around 2pm.
Platoon Chief Bill Sheane says the fire started on an exterior wall and made its way up to the attic.
He says workers were able to knock down the blaze with a fire extinguisher, but it re-ignited before firefighters arrived. They were able to fully extinguish it, but not before four vents were melted in the attic.
Photos show damage and black marks on a portion of the building. Traffic through the area from Ontario St. to Indian Rd. was slow going for just under two hours.
No one was injured, but damage is estimated around $50,000.
The cause is undetermined at this time.
