CN Rail announced that train operations have resumed on the line north of Montreal, but at slower speeds and under qualified inspection protocols following a major derailment. The incident occurred on Sunday afternoon, July 5, 2026, in Repentigny, Quebec, prompting an immediate halt to all CN traffic in the area while safety teams assessed the situation.
In the wake of the derailment, CN Rail officials mandated reduced speeds for all trains traversing the affected corridor. The slower pace is intended to allow crews to conduct thorough, qualified inspections of the track, rolling stock, and related infrastructure before permitting normal operations. These inspections are being performed by certified personnel authorized to verify compliance with safety standards.
The temporary suspension of service had disrupted freight movements across the region, as the line serves as a critical link for shipments traveling between eastern and western Canada. By implementing the reduced‑speed regime and inspection regime, CN Rail aims to restore a degree of reliability while ensuring that no further hazards arise from the incident. The company has not released additional details about the cause of the derailment, focusing instead on the immediate steps required to re‑establish safe train movements.
Authorities continue to monitor the situation, and CN Rail has indicated that service will remain under the reduced‑speed and inspection conditions until it is deemed safe to return to full speed. The railway’s prompt response seeks to balance the need for continued freight flow with the imperative of protecting workers, equipment, and the surrounding community.