About 125 firefighters are on the scene of a five-alarm fire on l'Ecu Ave. in the Bois Franc section of St. Laurent.

The fire started on the ground floor of a three-storey home, then spread to attic. Because of the very hot conditions, firefighters were forces to call in reinforcements.

Firefighters now appear to have the fire under control, but are still extinguishing it.

Residents in four homes were forced out – at least four families are affected. The Red Cross is at the scene it assist any family unable to return home.

No word on what sparked the flames.