Almost half of the Montreal metro's green line is down as emergency crews intervene on the site of a medical emergency. The affected stations are those between the busy Berri-UQAM and the eastern terminus at Honoré-Beaugrand. The STM shared news of the shutdown on both its website and the ligne verte Twitter account.
At the time of writing, service is expected to resume at 16:15, before the peak of the afternoon commute. The circumstances of the medical emergency are unclear.
UPDATE: normal service has resumed on the green line.
This is the third major metro service interruption in the last two weeks. On November 14, a water main break flooded Square Victoria-OACI station, forcing the STM to stop service along the downtown stretch between stations Lionel-Groulx and Berri-UQAM.
On November 18, parts of the orange line and the entire blue line were shut down due to the presence of smoke. The blue line shutdown persisted for over an hour.
The STM has established a special bus service between Berri-UQAM and Honoré-Beaugrand for the duration of the shutdown.
UPDATE: As of 16:10, normal service has resumed on the green line.