A fire of rare violence ravaged a construction company in Saint-Hubert, on the South Shore of Montreal, noon Monday.

Dozens of firefighters from all over Montérégie were on the scene to lend a hand to their colleagues in Longueuil.

The flames started shortly before 11 a.m. in the premises of the Chagnon company, located at 3500, boulevard Sir-Wilfrid-Laurier.

The fire would have spread throughout the building. No one would have been hurt.

The cause of the accident has not yet been determined.

At the height of the fire, the huge plume of black smoke rising from the blaze was visible for several dozen kilometers around.

- with the collaboration of Maxime Deland