Videos that appeared online this afternoon showed billowing black smoke emanating from a Plateau Mont-Royal building. Over 2,000 residents in the area are without power.\nThe Service de sécurité incendie de Montréal's Twitter page advised Montrealers to avoid the area after a third alarm rang on rue de Mentana and ave. du Mont-Royal E. \nEditor's Choice: Here's What You'll Be Able To Do When Montreal Becomes A Yellow Zone On Monday\n\nFeu 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\n\nThe warning signalled that a power outage was possible. \nAs of 3:45 p.m., Hydro Quebec's service interruption map indicated that 2,290 customers were without electricity in the area of the fire. The outage began at 3:17 p.m. and is expected to end by 6 p.m.\nPolice and the fire department have not yet publicly stated the cause of the fire. MTL Blog attempted to reach out to both departments for more information.\nThis article will be updated when we receive a response.