The STM is reporting that part of the orange metro line has been shut down due to "water infiltrations." Trains are currently not running between Montmorency and Crémazie stations on the eastern branch.
UPDATE: As of 16:50, service is gradually resuming on the orange line.
The circumstances of the infiltrations are unclear, but they come as much of the city contends with damage due to a powerful storm system moving through southern Quebec.
Photos and videos posted online show trees toppled and downed power lines across the city.
Service on the orange line is expected to resume by 16:45 but will likely have a lingering effect on the afternoon commute. The affected branch of the line, which connects Laval to downtown Montreal, is one of the busiest stretches in the STM network.
The STM shared the news via a Tweet on the orange line account.
The red line below on the metro map illustrates the extent of the shutdown.
As of 16:50, service is gradually resuming on the orange line.
Stay tuned for updates.