Service on the Montreal Metro’s Green line was halted on the evening of September 10, 2026 after an emergency incident required a rapid response from emergency services, but trains resumed later that night, restoring regular service for commuters.
The shutdown began after personnel detected a situation that triggered the activation of emergency protocols. Emergency responders arrived on site, securing the area and conducting the necessary procedures before the line could be cleared for operation.
The Société de transport de Montréal (STM) announced that the interruption was temporary and confirmed that service would be reinstated as soon as safety could be assured. No further details about the nature of the emergency were released at the time.
During the outage, passengers were advised to use alternative routes, including other metro lines and bus services, to reach their destinations. STM staff directed riders at stations along the affected stretch and provided updates through station announcements and the agency’s website.
Service resumed in the late evening, with trains running again along the full length of the Green line. The restoration allowed commuters to complete their journeys and marked the end of the disruption that had affected travel across the city for several hours.
Authorities indicated that the prompt intervention of emergency services was key to limiting the duration of the incident. The STM thanked the responders for their swift action and reiterated its commitment to passenger safety and reliable service.
The Green line, one of the three main routes in the network, carries thousands of passengers daily across Montreal’s east‑west corridor. Its brief suspension highlighted the reliance of many commuters on the line for work, school and leisure travel.