Emergency crews were tasked with extinguishing a two-alarm industrial fire in Etobicoke on Tuesday evening.
The fire broke out in the area of North Queen Street and Shorncliffe Road at around 5 p.m.
Toronto police said an explosion was heard in the area at the time.
Heavy black smoke could be seen billowing through the building, which holds an auto wrecker yard behind a metal fence.
Fire officials said the blaze burned for sevearl hours before crews were able to get it under control.
No injuries were reported as a result of the blaze.
Roads were blocked off in the area.
