On the evening of September 10, 2026, emergency services intervened on Montreal’s Green line, prompting an immediate shutdown of the route. The interruption lasted several hours before service was resumed.
The STM confirmed that trains on the Green line, one of the network’s primary corridors, were halted as crews addressed the emergency. Details of the incident have not been released, but officials indicated that the response was necessary to ensure passenger safety and restore normal operations.
Commuters experienced delays across the system as the Green line, which links several key districts, was taken out of service. Alternative routes and bus replacements were offered while the situation was being managed.
By late evening, emergency responders had completed their work, and the STM announced that regular service on the Green line was back in operation. The restoration allowed trains to resume their scheduled trips, alleviating the buildup of passengers awaiting transport.
The Green line’s importance to daily travel in Montreal means that any disruption reverberates through the city’s broader transit network. The swift resolution of the emergency limited the impact on commuters, though the brief shutdown underscored the line’s role in moving large numbers of riders.
No injuries or casualties were reported in connection with the incident, and the STM has not indicated any longer‑term effects on the line’s schedule. Authorities continue to monitor the situation, and further information may be released as the investigation proceeds.