Canadian National locomotives are seen in this file photo.
Ryan Remiorz / THE CANADIAN PRESS
A Canadian National freight train derailed early Wednesday in L’Assomption, in the Lanaudière region.A total of 13 cars jumped the tracks — 10 of them sustaining damage — but there were injuries reported.Some cars contained dangerous materials however all remained intact after the derailment. Four empty tanker cars contained diesel fuel residue and one was carrying sodium nitrate. The transfer of their contents is expected to begin Wednesday afternoon.The tracks were damaged at several locations and will take several hours to be repaired.Canadian National is investigating the cause of the incident. Meanwhile, the rail line itself, which is also used by VIA Rail for its Montréal-Jonquière and Montréal-Senneterre runs, was closed, forcing the cancellation of commuter service departing Montreal for those destinations on Wednesday as well as the return runs to Montreal on Thursday.No alternative service has been established and travellers will need to use inter-city buses to reach their destinations.