MONTREAL Montreal firefighters were called to the scene of a three-alarm fire in the Plateau borough on Wednesday afternoon. According to the Montreal fire department s Twitter account, the fire was located at the intersection of Mont-Royal Ave. East and Mentana. The fire was upgraded to a three-alarm blaze at 3:15 p.m. and a fire department spokesperson said 45 firefighters were on the scene. Feu de bâtiment - MENTANA / MONT-ROYAL E. - Troisième alarme - Coupure de courant possible. Merci d éviter le secteur. pic.twitter.com/fisTqJCoDn Sécurité incendieMTL (@MTL SIM) June 9, 2021 A spokesperson for the Montreal fire department said the fire began at around 3 p.m. on the top story of a building that has a business in the first floor and residences on the second and third floors. The cause of the fire is not yet know.