Service on a portion of the Société de transport de Montreal’s (STM) green metro line was down for the better part of a day.
The STM first tweeted about the disruption between the Viau and Frontenac stations on Sunday morning.
The transit authority said a water main break caused water to infiltrate into the Metro.
READ MORE: Montreal Metro’s blue line extension costs rise by $600M: STM
The STM reassured transit users it was working with the city to re-establish service as quickly as possible.
While the STM was hoping to have the trains back on track by 11 a.m., the time was pushed back on several occasions throughout the day.
Service resumed just before 6 p.m.
READ MORE: STM creating new express bus line, adding trains to Metro’s orange line to alleviate congestion
Shuttle buses were put in place to ensure riders were able to get to their destinations.