A trailer was stolen from the Bishopstone area at the weekend and was subsequently involved in a collision on the M4.
The Ifor Williams trailer was stolen from farmland on April 14, and then crashed on the motorway between junction 16 and 17 at approximately 7.45pm.
The occupants of the vehicle which was towing the stolen trailer – a Nissan X trail on false plates – fled the scene. It is believed they were picked up by another vehicle, possibly travelling in convoy.
PC Ben Cox said: “I’m appealing for anyone who witnessed the incident on the M4, or anyone who saw the vehicle being driven prior to the collision, to get in touch.
"The motorway was busy at the time of the incident, so it is likely there are witnesses to the collision and the occupants leaving the scene.”
Anyone with information should call 101 and quote crime reference number 54190036375.