One man was burned when a fire broke out overnight on the roof of an apartment building in Outremont.

The fire started around 4 a.m. on Bates Rd. on a rooftop terrasse when someone stubbed out a cigarette in a flower pot.

The hot ashes set fire to the plant and the flames quickly spread.

It took firefighters an hour and a half to get the fire under control.

One burned his hands and feet and was taken to hospital to be treated for his injuries.