10/05/2014 10:41 EDT | Updated 12/05/2014 05:59 EST

St-Bruno commercial building up in flames

Firefighters are battling a major fire in St-Bruno-de-Montarville after a commercial building on Montarville Street caught fire mid-morning on Sunday.

The cause or severity of the fire is not yet known. The building was occupied by a dentist's office and at least one other business.

The building is attached to a strip mall.

CBC reporter Kate McKenna is en route.

More to come.