Investigators have determined that spontaneous combustion was the cause of a fire at a large industrial linen cleaning plant on the 700 block of Stanley Dethridge Bay, in Regina’s east end this past Sunday morning.

In a release the City says effective alarm and sprinkler systems helped firefighters successfully contain the blaze.

“We only average a couple of these fires a year that are deemed spontaneous combustion,” said Fire Chief Layne Jackson in a release. “Our investigators determined this fire was caused by spontaneous combustion of laundered material contaminated with oil based organic products.”

Regina Fire is reminding all industrial business owners and operators to ensure their fire and safety systems are inspected annually, as per the National Fire Code and Regina Bylaw.

All residents are also being reminded to be sure all rags used for application of oil-based organic products like wood finisher and cooking oils, are laundered and dried before being thrown away or put into storage.

No injuries were reported in the fire that broke out just before 2:00 a.m. Sunday morning.