According to the STM website, the orange line has been shut down between Berri-UQAM and Henri-Bourassa stations "due to an intervention by emergency medical services."
The STM predicts that service will not resume until 2:00 PM, totalling about an hour of interrupted service.
Shutdown ORANGE line between Berri-UQAM and H-Bourassa. Inter. Emergency medical services. Service expected to resume at 14:00. #stminfo S— Ligne Orange (@Ligne Orange) 1555434260.0
There are no further details as to the nature of the emergency medical situation.
UPDATE: the STM is advising passengers to seek alternative routes.
[Ongoing disruption] 🚇⚠️ : Get new travel directions by unticking métro box: https://t.co/ktpH9Y1QLw— Ligne Orange (@Ligne Orange) 1555434961.0
The STM has also established a shuttle that is running along the affected orange line route.
[Ongoing disruption] 🚇⚠️ A temporary bus shuttle service is being established between Berri-UQAM and Henri-Bourassa… https://t.co/hmKrk6nKjn— Ligne Orange (@Ligne Orange) 1555435572.0
UPDATE: normal metro service has resumed.
Stay tuned for updates on this developing story.