Firefighters and Quebec's environmental emergency team are on the scene, trying to fix the leak and clean up the spilled gas.
Emergency responders were alerted to the leak at 7 p.m. Thursday.
Neither the quantity of the spilled gas nor the cause of the leak is known at this time.
Crews are working to collect the oil and put it into tanker trucks.
Authorities told Radio-Canada that although the leak has not yet been sealed, the situation is under control.