AT least four people are dead after a horror smash on the M5 this afternoon involving a lorry and several cars.
Huge queues built up behind the crash scene after the motorway was closed in both directions.
"Sadly, at least four people have died", Avon and Somerset Police said in a statement.
Four people have died and a woman and two children are seriously ill in hospital after a lorry smashed through the central reservation on the M5.
A force spokesperson said: "At just before 2.30pm, a lorry travelling southbound went through the central reservation and was in collision with at least two cars in the northbound carriageway".
Police said the motorway would remain closed in both directions overnight between junctions 16 and 14 as specialist officers worked through the night.
The crash involved several vehicles, including a lorry.
Cardiologist Dr Amer Hamed was in a vehicle travelling "10 to 20 seconds behind" when the crash happened.
Witnesses reported seeing people lying by the side of the road as members of the public helped pull survivors from wrecked cars, with some performing first aid. "One was completely wrecked and another had flipped over". "We're going to be stuck here for a few hours yet".
The most striking thing about the scene is the practically entire hush here.
The lorry that has slammed has hit what M5 workers will know as a well-known historic point, a windsock beside the street.
South Western Ambulance Service said it was called just after 14.30 BST.
Avon Fire & Rescue Service sent six vehicles.
It included drivers the M4 wanting to join the M5 northbound were not able do as such.