Major building fire forces road closures in Longueuil

Firefighters in Longueuil battle a major blaze, Thursday, Feb. 26, 2026. (Association des pompiers et pompières de l'agglomération Longueuil - APPAL)

Firefighters battled a major building fire in an industrial sector of Longueuil on Montreal’s South Shore early Thursday morning.

The department received a 911 call about the four-alarm blaze at 3 a.m.

The incident has forced the closure of Fernand-Lafontaine Boulevard between Jacques-Cartier Boulevard East and du Lac Road.

Traffic lights are also not working on Jacques-Cartier Boulevard East between Fernand-Lafontaine Boulevard and Highway 20.

Police are asking people to avoid the area.