A Canadian National Railway train has derailed in Milton, damaging the road and railway.

Repair crews have been on the scene since around 10 a.m. Wednesday, when the CN train went off the tracks.

No one was hurt in the derailment but the accident blocked off Tremaine Road.

The crew are trying to separate the train cars so that the road can reopen but officials say the area should be closed off for a few more hours.