A collision on the A690 Durham road has closed one lane of the slip road at Rainton Bridge
Police say the incident was reported just after 8am this morning and emergency services were at the scene.
Witnesses described about five cars lined up on the side of the road , with people sitting on the kerb.
A Northumbria Police spokeswoman said: "At 8.09am, this morning, police were informed of a collision on the A690 Durham Road, near to the Rainton Bridge turnoff.
"It is not thought that anyone has been injured.
"One lane on the slip road is currently closed."