A child has died after a school coach carrying children and staff from a day trip crashed in Somerset.
The coach was carrying 60-70 passengers and was heading back to a nearby middle school in Minehead.
A local resident said the coach had gone off the road and down a slope.
Chief Superintendent Mark Edgington of Avon and Somerset Police told reporters that a child had died following the incident.
Speaking outside Bridgwater Police Centre, Mr Edgington said: "A number of other people have presented or been taken to hospital, some with serious injuries.
"This includes two children who were taken to hospital by air ambulance, many passengers either sustained minor injuries or were physically unharmed and were transferred to a rest centre.
"Work to help them return to Minehead has been taking place throughout the evening.
"An investigation into the cause of this incident will be carried out."
The crash happened on the A396 at Cutcombe Hill, between Wheddon Cross and Timbercombe, at about 3.15pm on Thursday, police said.
The school coach slid 20ft down a bank after it flipped onto its roof, the press conference was told.
An off-duty firefighter travelling behind the coach was able to start freeing passengers immediately, Gavin Ellis of Devon and Somerset Fire & Rescue Service said.
"We were mobilised to a major incident of a coach that had overturned onto its roof and slid approximately 20ft down the embankment," he told reporters.
"Our crews carried out a number of extrications and rescues in extremely difficult circumstances, and they also supported our ambulance colleagues with casualty treatment.
"This was a very complex and technically difficult incident for our crews to deal with, and I'm grateful for the tireless effort and actions of the crews in doing everything they could for those who were trapped and as quickly as safely as possible.
"I'm also grateful to the off-duty firefighter who was traveling behind the coach at the point of the crash who was able to start to release those casualties from the bus."
Twenty-one people have been taken to hospital after the coach crash, the press conference was told.
Wayne Darch, deputy director of operations for the South Western Ambulance Service said: "We declared a major incident that has since been stood down.
"We sent 46 resources to the scene, including 20 double-crewed ambulances, three air ambulances, a command team and two hazardous area response teams.
"We treated several patients at the scene and conveyed 21 patients to hospital via land and by air."
