Firefighters found themselves fighting the cold early Friday morning as they worked to bring a residential fire under control on de Beaurivage Street in Mercier-Hochelaga-Maisonneuve.

No one was injured in the fire, which destroyed the roof and damaged two floors of the building. An electrical problem is believed to be the cause.

Rémi Perry, Chief of Operations with Montreal’s fire department, said the extreme cold added an extra challenge to fighting the flames. A total of 75 firefighters worked in shifts of an hour to an hour-and-half to avoid exposure and allow them to de-ice their equipment.