Toronto Fire Services says an explosion at an industrial site in the east end of the city has caused significant damage.
The fire department says crews were called to a two-alarm blaze near the Scarborough Convention centre shortly before 1 a.m. Wednesday.
A spokesperson says the fire was the result of an apparent explosion at a commercial property.
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Crews reported debris was still smouldering when they arrived.
There was also significant damage to multiple units.
There were no reported injuries.