The Montreal fire department has tweeted Monday evening that there is a five-alarm fire in a residential section of Pierrefonds.
https://twitter.com/MTL_SIM?lang=en
They report the location of the fire as being near the intersection of Riverdale Blvd. and Riviera St. They advise motorists to avoid the area and warn that the electricity might have to be cut while the blaze is being fought.
Judging by a series of tweets that were posted, the fire quickly went from a one-alarm fire to a five-alarm fire in less than an hour.
More details to come.