Reports of explosion before fire in downtown Toronto

Toronto police say nobody was injured in a late-night fire under the Bathurst Street bridge at Fort York Bulevard.

Police say nobody was injured in the fire under the Bathurst St. bridge

The aftermath of a fire that broke out late Saturday night under the Bathurst St. bridge. Police say nobody was injured. (Mehrdad Nazarahari/CBC News)

Toronto police say nobody was injured in a late-night fire under the Bathurst Street bridge at Fort York Boulevard.

People in the vicinity reported hearing a loud explosion around 11:11 p.m. and then Twitter lit up with photos of orange flames and black smoke billowing out from under the bridge. 

A police spokesperson said the fire was potentially the result of "propane and aerosol cans" but that Toronto Fire would be taking over the investigation. 

The fire was small "with a lot of smoke," Fire Captain Bill Papakonstantinou said.

In a tweet Sunday afternoon, Toronto Fire Chief Matthew Pegg said investigators have completed its investigation into the fire.

"We have confirmed that there was a boiling liquid expanding vapour explosion (BLEVE) during the fire," Pegg wrote.

Roads in the area were closed for the investigation but have since reopened.