MONTREAL – Trains are running normally after a “minor” derailment caused a complete cancellation of exo's Mascouche line Thursday.

“One car from one train [the 1208 Masouche] derailed,” exo spokesperson Catherine Maurice told CTV News.

“It is stuck on the track that goes inside the Mount Royal Tunnel under the mountain.”

As a result, several trains heading to-and-from Montreal’s Central Station were been cancelled.

Trains were operating normally as of 4:30 p.m. Thursday, Exo wrote on twitter. 

Maurice said only the conductor was onboard at the time of the derailment. He was switching lanes to pick up new passengers.