Around 4,000 customers are currently in the dark in Côte-des-Neiges.
The outage began shortly after 10:00pm and stretches from de Courtrai to beyond Queen Mary along Côte-des-Neiges Road.
A crew has been dispatched to resolve the issue.
According to Hydro-Quebec, the power failure is due to an accident in the area. The provincial utility says that service will be restored overnight.