TWO people were rushed to hospital after the car they were travelling in flipped over on a country road.
Emergency services including the Great North Air Ambulance were called to Hesleden Road, in Hesleden, after the pair were trapped in the vehicle when it overturned.
Ambulance chiefs say heavy fog may have been a factor, and the poor visibility caused the air ambulance problems in landing.
Two appliances from Peterlee Fire Station and one from Wheatley Hill attended the incident, which happened around 5.15pm on Thursday.
Two ambulances and a rapid response paramedic vehicle were also sent to the scene.
A spokeswoman for County Durham and Darlington Fire and Rescue Service said: “We were called at 5.27pm to a road traffic collision where a car had overturned with persons reported trapped on Hesleden Road.”
A North East Ambulance Service spokesman said: “We received a call at 5.17pm for a one-vehicle collision.
“We dispatched a rapid response paramedic who was on scene by 5.27pm, as well as two double-crew ambulances and air support.
“There was quite a bit of fog reported in the area and the Great North Air Ambulance had a few problems landing.”
One patient was taken to the University Hospital of North Tees, in Stockton, and the other was taken for treatment at James Cook University Hospital, in Middlesbrough.
No details of their injuries were available.