This is the shocking moment a drink-driver plunges off a bridge and lands his car upside down on a motorway, killing himself and seriously injuring his girlfriend.

The unnamed victims were travelling at speed in the early hours of the morning, having apparently been out for a night of heavy drinking.

Traffic cameras in the city of Mudanjiang, in north-eastern China's Heilongjiang Province, show the motorist driving straight off the bridge, crashing through the concrete barrier and falling about 16 feet onto the road below.

A driver died when his car plunged off a bridge and ended up upside down on a motorway

The dramatic footage shows the vehicle landing front end first, completely destroying the bumper and scattering debris across the road, which was relatively empty at the time of the crash.

Dashcam video and mobile phone footage from the scene show passers-by surrounding the accident site, where the vehicle remained upside-down until authorities arrived.

The unnamed victims were travelling at speed in the early hours after a night of drinking

It happend in the city of Mudanjiang, in north-eastern China's Heilongjiang Province

Traffic cameras there captured the dramatic footage in which the car plunges off the bridge

The car went through a concrete barrier and fell about 16 feet onto the motorway below

Police officers and local firefighters shifted the vehicle onto its side and managed to free both driver and passenger from the mangled metal.

But the man was pronounced dead at the scene by paramedics, while his girlfriend was rushed to hospital and is still in intensive care.

Mudanjiang police, who are now investigating the case, are treating the crash as an accident and have not detained anyone in connection with the fatal incident.