London, Ont., fire officials say no injuries were reported after a blaze broke out in the east end.
The London Fire Department announced the fire shortly after 8:30 a.m. Sunday.
Officials say black smoke was coming from the roof of a building located at 552 Clarke Road.
Fire crews extinguished the blaze and reported no injuries.
Damage is pegged at less than $5,000.
The cause of the fire is believed to be a rooftop generator.