TRAFFIC is backed up for 15 miles on the M40 southbound this morning following a collision between two cars.

Police were called at 6.55am to accident near junction 6 at Watlington between an Audi and a Ford Fiesta.

Thames Valley Police spokesman Hannah Williams said one driver was cut free as a precaution.

Lane two and three are closed and fire and ambulance crews are at the scene

The accident happened in the Stokenchurch cutting between junctions 6 and 5 at around 7am. 

Updates will be posted automatically on our Live Traffic Service.