A police officer was injured in a collision with a car driving the wrong way down a busy motorway.
Police were called to a collision on the A1(M) at 1.42am on Thursday, August 7, following reports that a silver Ford Fiesta was being driven southbound towards Potters Bar on the northbound carriageway.
A rolling road block was placed on the road at Junction 4, towards Hatfield, in an attempt to safely bring the car to a standstill.
However, the Ford Fiesta then collided with a stationary police car at around 1.50am, leaving the officer inside the vehicle with slight injuries.
A 26-year-old man from Southampton has been arrested on suspicion of dangerous driving and drink driving, and has been released on police bail until August 28.
However police officers are now appealing for witnesses to come forward with any information they may have about the incident.
Sergeant Karl McDermott, from the Bedfordshire, Cambridgeshire and Hertfordshire Road Policing Unit, is investigating the incident and said:“I would like to hear from anyone who witnessed the incident, the collision or the events prior to or after the collision.
“A number of people stopped to speak to officers who were attending another incident at Junction 7 about this incident and I would like to hear from these people as they may have information that can assist our investigation."
Police are also hoping to get in touch with a van driver, who is believed to have been trying to warn other motorists about the oncoming incident, although the van remained in the correct carriegway.
Sargeant McDermott added: “There was also a van with flashing yellow lights travelling alongside the Ford on the southbound carriageway, which appeared to be trying to warn other motorists. If you were the driver of this van please contact me.”
Anyone with information is asked to contact the police via the non-emergency number 101 and ask for Sergeant McDermott.