Six people have been taken to hospital after a collision in Shropshire involving a 40-seater coach and a van.
Medics warned that casualty numbers could yet rise as a result of the crash on the Hortonwood industrial estate in Telford at about 1610 BST.
The van driver, in his 50s, had lower leg injuries and was airlifted to hospital as he was thought to have lost consciousness.
Five women who were passengers on the coach were also taken to hospital.
Up to 20 coach passengers were taken to a nearby leisure centre for assessment.
The coach had been taking factory workers home when it was in collision with the van, West Midlands Ambulance Service said.
Four women with neck and back pains were immobilised and taken to the Princess Royal Hospital in Telford. A fifth woman was taken to hospital with minor injuries.
Shropshire Fire and Rescue Service cut the van driver free from his vehicle. He was then immobilised in a neck collar and spinal board and flown to hospital.
"This was an extremely complex incident with a large number of resources and patients at the scene," West Midlands Ambulance said.
"Close working between all three emergency services ensured all of the patients were dealt with in a fast and efficient manner."