Dozens of people have been injured, eight seriously, in a pile-up of over 100 vehicles on a bridge in England.

Police have said it was "truly miraculous" that no one was killed in the crash on the new Sheppey crossing bridge in Kent.

Ambulance crews dealt with about 200 people at the scene and more than 30 were brought to hospital. 

The incident started at around 7.15am in heavy fog and continued for ten minutes as cars and lorries crashed into each other in visibility that was down to about 20 metres.

Some witnesses said motorists were driving "like idiots" in the conditions before the crash that completely closed the A249 route.

The scene was full of buckled cars, lorries and even a car transporter as people waited at the side of the road to receive help from the emergency services.

It was reported that people were trapped and a fleet of 30 ambulances and response vehicles went to the scene, with some casualties receiving treatment at the roadside.

A Kent Fire and Rescue Service spokesman said: "Firefighters have used hydraulic cutting equipment to release five people from their vehicles."

Kent Police said there were collisions at the top of the bridge and at the foot of the approach to it.

"Officers are urging motorists to avoid the area but if a journey to the island is essential, the old Kingsferry Bridge remains open but expect long delays," a spokeswoman said.