POLICE are appealing for help in tracing the owner of a black Mercedes car after an accident on the M25.

The accident happened at around 1.30pm last Sunday between junction six and junction five anti-clockwise.

A 23-year-old driver was taken to The Princess Royal Hospital University Hospital, Farnborough, suffering head injuries.

Her injuries are not believed to be life-threatening.

Police are searching for the owner of the Mercedes, which has a 54 registration plate.

The car might have some damage and red paint scratches down the front and side.

Anyone with information should call 01622 798571.