Emergency services are on the scene of a crash on the A1(M) in Welwyn Garden City, which has resulted in long queues of traffic all the way back to Hatfield.

A Herts Police spokeswoman said: “We were called at 8.55am to reports of a collision involving a lorry and a Mini on the A1(M) northbound just north of Junction 4 [Hatfield, Oldings Corner - Tesco roundabout].

“Two lanes are currently closed.

“The lady driving the Mini is being seen to by the ambulance service and we remain on scene.”

An eyewitness said: “There were a couple of police cars on the scene.

“When I went past, police and Highways were across the road and all lanes were closed.

“Police had closed the road and were holding traffic around Junction 5 where you join from Lemsford.

“Traffic was backed up all the way to Hatfield Tunnel.”