A Montreal fire truck.
Allen McInnis / Montreal Gazette
Montreal police have been called in to assist in the investigation of a fire that broke out in a Sherbrooke St. apartment building Tuesday morning. The fire left a 75-year-old man in critical condition.Arson investigators are attempting to establish the cause of the blaze that broke out in the building’s basement at 8 a.m.Firefighters found the man unconscious in the basement apartment. He was rushed to hospital and listed in critical condition.