Officers are appealing for witnesses and dashcam footage after a woman died following a collision on the M40 this morning (April 11).

At around 7.37am emergency services were called to a serious collision involving multiple vehicles on the northbound carriageway of the M40 between Junction 11 (Banbury) and Junction 12 (Gaydon). 

Despite the efforts of two off-duty police officers who performed CPR - and emergency services who arrived shortly after - the woman died at the scene.

DS Stephen Barr of Warwickshire Police's serious collision investigation team said: "This was a serious incident which has seen a woman tragically lose her life.

"We are conducting a full investigation and we are now asking for anyone who witnessed the incident, or who has dashcam footage, to please get in touch with us.

"Of particular interest to officers is any footage of a black Volkswagen Polo that was travelling northbound between junctions 11 and 12 between 07:00 and 07:37 this morning.

"We would also like to hear from the driver of a white Luton-style van which the Polo was in collision with as they may have vital information. 

"Vehicles on the southbound carriageway were also affected by the collision as two cars heading southbound took evasive action, resulting in a further collision and we would appeal for any footage from those travelling southbound also."

There was also a minor collision on the southbound carriageway between the same junctions.

Anyone with footage or information is asked to contact police by calling 101 or visiting www.warwickshire.police.uk/ro/report, citing incident 39 of April 11.