At approximately 8:05 am a six-inch (150 mm) fissure emerged in a natural gas supply line in the cellar of 367 rue Bergevin, destroying units in it along with those in buildings 365, 363 and 361.
[4] At 10:00 pm on the evening of the explosion, Coroner Marcel Trahan released some names of the known dead.
By the afternoon, premier Jean Lesage and multiple deputies and ministers arrived to assess the damage.
Queen Elizabeth letter's stated: "I am most deeply distressed to learn of the tragic accident which has taken place in Ville LaSalle.
[8] In November of that year Herbert Peard launched a lawsuit against Quebec Natural Gas Corporation.
[10] In February 1967, LaSalle Heights Inc. filed a $853,275 lawsuit against Quebec Natural Gas Corporation.