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Hugo Fontaine, spokesperson for the safety board, says two investigators arrived at the scene of the derailment on Sunday to gather information and assess what happened.

CN Rail says none of the railcars contained hazardous materials, adding that it would issue an update on the derailment later.

Repentigny Mayor Nicolas Dufour said on social media the derailment is unsettling and thanked residents for their resilience.

Today is the 13-year anniversary of the train derailment in Lac-Mégantic, Que., that killed 47 people and destroyed much of the town's downtown area.

This report by ºÃÉ«tvwas first published July 6, 2026.