The incident happened at the Ffynnongain level crossing, near Whitland, in Carmarthenshire.

Arriva Trains said Saturday's 1909 GMT Pembrokeshire to Swansea service had been involved in the collision.

Emergency services were called to the scene but no injuries were reported. However, passengers on the train were assessed as a precaution.

Accident investigators have been called in and services west of Carmarthen have been suspended and replaced with bus and coach services.

The crash comes after a London to Glasgow high speed train derailed in Cumbria killing one passenger and leaving five others seriously injured on Friday evening.