Suncor says the fire was contained quickly, extinguished several hours later and no one was hurt.
It says regulators have been notified and maintenance planned for the third quarter has been accelerated in advance of a return to normal operations.
Bitumen that was already available at the plant continues to be processed as Suncor says its two upgraders at the plant remain online, working at minimum rates.
The company has not released a cause of the fire but says it will release a further operational update by early next month.
This report by The Canadian Press was first published Aug 17, 2020.
Companies in this story: (TSX:SU)
The Canadian Press