Six people have been injured and rushed to hospital as eight-vehicles came together in three crashes on the M5 motorway.
The air ambulance was called to the multiple emergencies with one involving a coach.
South Western Ambulance Service said it sent a convoy of ambulances at 10.16am and "conveyed patients to hospital by land ambulance". It has not confirmed how serious the injuries are.
It was originally reported that 13 people were injured but this number has now been confirmed as six.
Eight vehicles including a coach were involved in three separate crashes along the same stretch of motorway all at the same time, reports Bristol Live.
There is still heavy traffic in the area and motorists have been urged to allow extra time for their journeys.
Are you affected by this crash? Email webnews@mirror.co.uk
Avon and Somerset Police said in a statement: "Emergency services attended collisions on the M5 southbound between junctions 21 for Weston-super-Mare and 22 for Burnham-on-Sea.
"The first call came in to police just after 10.15am today, Thursday 24 February.
"Eight vehicles, including a coach, were involved in three separate collisions on the same section of road at that time. The fire and rescue service and air and land ambulances attended.
"Traffic on the northbound carriageway was stopped briefly to allow the air ambulance to land and lift. One person went to hospital by land ambulance with injuries not believed to be life-threatening or life-changing.
"Lanes two and three were reopened by 11.45am. The lane one closure was handed to National Highways at about midday pending recovery of the vehicles."
South Western Ambulance Service confirmed it took six people to hospital.
A spokesperson said in a statement: “We were called at 10.16hrs to a road traffic incident on the M5 between junctions 21 and 22.
"We sent an air ambulance, three double-crewed land ambulances, three operations officers, and two hazardous area response teams, and conveyed 13 patients to hospital by land ambulance."
Firefighters also helped with the casualties in this morning's crash.
A spokesperson for Avon Fire and Rescue Service said: "17 firefighters from Avonmouth and Weston-super-Mare were called at 10.20am to reports of a road traffic collision on the M5 southbound between Junction 21 and 22."
They added: "On arrival, crews found an incident involving four vehicles. Firefighters assisted ambulance crews with casualty care, using medical kits and small gear. Casualties are being conveyed to hospital by the ambulance service."
National Highways tweeted shortly before 10.50am: "The #M5 is blocked southbound between J21 (#Weston-Super-Mare) and J22 (#Burnham-On-Sea) following a multiple vehicle collision.
"#TrafficOfficers and all emergency services including the air ambulance are on scene. Please allow extra time for your journey as delays building."
Traffic-monitoring site Inrix reported that motorists were held on both sides of the motorway while the air ambulance landed earlier. The southbound side was blocked but one lane has since reopened.
Please check back regularly for updates on this developing story
