Paramedics have rushed 11 patients to hospital after a crash on the M5 involving five cars and a lorry.
West Midlands Ambulance Service was called to the northbound carriageway of the motorway between junctions eight and seven at 12.05pm.
They dispatched four ambulances, a paramedic officer and the Midlands Air Ambulance crew from Strensham in a rapid response vehicle to the scene.
An ambulance service spokesman said: “On arrival, crews discovered five cars and a lorry that had been in collision.
“The 11 patients requiring further treatment at Worcester Royal Hospital were conveyed on four ambulances.”
On the first ambulance, there was a woman in her 50s who was treated for wrist and ankle injuries, a woman in her 20s who was treated for leg and facial injuries and two young boys who were treated for facial injuries and cuts to the foot respectively.
The second ambulance conveyed a man in his 20s with chest pain, a teenage woman with a suspected fractured arm and a second teenage woman with arm and head pain.
A woman in her 20s was treated for a fractured jaw and her injuries to her face whilst a man in his 20s was treated for a shoulder injury. They both travelled to hospital on the same ambulance.
Two women in their 20s were treated for minor injuries before also being taken to Worcester Royal Hospital.
The 12th patient, a man in his 20s, was discharged at the scene.
At the peak of the delays this afternoon, the crash caused queues stretching back as far as Cheltenham, with motorists facing an hour’s travel time.
At around 2pm all lanes reopened, but drivers in Tewkesbury and Gloucester continued to suffer delays.
There was very slow traffic on A46 Eastbound between M5 J9 (Tewkesbury) and Sandfield Lane (Sedgeberrow).
Also affected were drivers on A38 Tewkesbury Road Northbound between A40 (Longford Roundabout, Gloucester) and Gloucester Road (Tewkesbury).
Gloucestershire Fire and Rescue Service was called at 12:20pm by Hereford & Worcestershire Fire Service to help deal with the accident.
One appliance from Tewkesbury station was dispatched, as it was easy for them to get to on that side of the carriageway, a spokesman from the fire service said.