WATCH | Wreckage of world's longest train crash

A train with no-one on board travelled at 100km/h for 92km in a remote area of Australia before being deliberately derailed.

While the driver was outside of the locomotive, the train started off down the track.

The Guardian reports the footage shows the twisted wreckage of the two-kilometre long train, some carriages partly buried under mounds of iron ore.

The train was made up of four locomotives and 268 wagons.

BHP Billiton said it had suspended all its iron ore rail operations in Western Australia on Monday after the incident.

No-one was injured in the crash.