Put in service three weeks ago, the first of 20 new Bombardier locomotives purchased for Montreal's commuter-train network derailed at Central Station on Friday.

Locomotive, train car involved in derailment to be inspected next week

Experts hope a mechanical inspection next week will help them determine the cause of a Central Station derailment involving a locomotive and a train car.

The Agence métropolitaine de transport equipment went off the tracks as the Mont St. Hilaire commuter train arrived just before 8 a.m. on Friday.