Passers-by performed CPR on a man after he became trapped under his car in Hartlepool this morning.
The pensioner, thought to be in his 70s, was released by members of the public before they tended to him ahead of the arrival of the emergency services.
The incident took place in the West View area of the town, and is thought to have happened after the man had been working on his car at about 10.30am.
Paramedics - as well as the air ambulance - attended, as did the fire service and police.
After being treated at the scene, the patient was transferred by road to James Cook University Hospital, in Middlesbrough.
Andy Hardy, watch manager of White Watch at Stranton Fire Station, said: "We attended this morning and had a male casualty in his 70s.
"He had unfortunately been trapped under his vehicle while carrying out maintenance work.
"He had been released by members of the public by the time the fire service got there.
"The man was suffering with crush injuries.
"He had been given CPR by a member of the public and was breathing when we arrived.
"We gave first aid before the ambulance arrived, and we assisted the North East Ambulance Service with the casualty.
"He was transferred to James Cook University Hospital, in Middlesbrough, by ambulance."
A spokesman for North East Ambulance Service said: "We were called to the West View area of Hartlepool at just after 10.30am today.
"We dispatched two ambulances and requested the air ambulance.
"The patient was taken to James Cook University Hospital by road.
"Doctors travelled with the ambulance crew."