A woman who was walking along the M25 was killed after she was believed to have been in collision with a vehicle.

The incident happened just before 3am yesterday morning (Sunday 11 January) near Junction 13 at Staines.

A man driving a black Volkswagen Golf, which was found nearby, was arrested for failing to stop following an accident and providing a positive breath test.

Shortly afterwards, there was a second collision involving 4 vehicles including a minibus.

The M25 was closed for several hours anti-clockwise from Junction 14 at Heathrow Airport to Junction 12 at Chertsey.

Police are appealing for anyone who saw the female pedestrian walking in the area or along the motorway prior to the collision, or anyone who witnessed either of the collisions, to contact the Collision Investigation Unit straightaway on 01483 632299, quoting incident reference P15008681.