A dramatic security camera video has emerged from China showing a lorry career off the road after the vehicle's cab collapsed forwards.

In the clip, which was filmed in Linyi, Shandong Province on July 14, the lorry's cab suddenly falls forwards at a busy junction and puff of white smoke rises from the malfunctioning vehicle.

The lorry then races out-of-control across the junction and crashes into a park area at the side of the road.

Fortunately, no-one was injured in the incident, according to local media.