THE Great North Air Ambulance was called to assist with a man who had had heart problems.
The incident in Brotton, East Cleveland, happened around 10.20am today (Monday).
The man was aged between 61 and 70.
A spokesman for the air ambulance said the man was being treated by a North East Ambulance Service crew and a doctor and nurses from Brotton Hospital upon arrival.
"The GNAA paramedic treated the patient at he scene before he was flown to James Cook University Hospital in a serious condition," he said.