Police warned that propane cylinders were “possibly exploding” and that debris could be falling onto the street

Police and firefighters responded to reports of a rooftop fire at a building under construction in downtown Toronto, Canada just after 6:00 PM Friday.

“Information received that items are possibly exploding and debris may be falling onto the street below,” the Toronto Police Operations Center wrote in a post on X, warning people to “use caution travelling in the area.”

The incident near Richmond Street West and John Street prompted road closures and pedestrian restrictions in the area, as emergency personnel rushed to the scene.

Fire in toronto! EXPLOSION #toronto #explosion pic.twitter.com/VLqQ1WFKxl

— Wyatt (@whereiswyatt) March 27, 2026

The Toronto Fire Services later said crews remained on the scene after a two-alarm fire on the roof of a commercial building on Richmond Street West led to ruptured propane cylinders, heavy flames, and thick smoke. Firefighters said crews protected the remaining cylinders and extinguished the fire, adding that no injuries were reported.

Massive fire near Richmond and John street! Hope no one was injured! @CityNewsTO @Citytv @CTVToronto pic.twitter.com/SMAfhOL5rl

— Behrazz (@behrazb) March 27, 2026

There were no reports of casualties. Local media footage shows thick smoke and flames rising from the rooftop.