M5 closed due to car accident
PUBLISHED: 14:51 29 August 2016 | UPDATED: 16:16 29 August 2016
An air ambulance has just left the M5 following a serious motorway crash involving two vehicles.
Four people are thought to have been hurt in the accident, with the most serious casualty a child who has been airlifted to hospital.
Traffic travelling southbound between junctions 21 (Weston-super-Mare) and 22 (Burnham-on-Sea) has been at a standstill for several hours following the accident, with the main carriageway closed to allow the air ambulance to land.
All lanes remain closed and traffic is not being allowed to join the motorway heading south from Weston.
Cars caught up in the tailbacks, which at their peak were estimated at 40 miles long, are now being diverted from the motorway by police.
Traffic officers have signposted a diversion through Weston along the A370, which is causing substantial queues on the way into town.
The high volume of bank holiday traffic heading south from Clevedon and Portishead is also resulting in major tailbacks through Yatton and Congresbury.
Considerable delays and slow traffic are also being reported on the M5 northbound between the two junctions due to the accident on the southbound side.