An air ambulance has landed on the M40 after a car overturned in rush hour traffic this evening.

The motorway was closed between junction 2 (Beaconsfield) and junction 1A after a crash at about 4pm, with delays going back towards High Wycombe.

Emergency services descended onto the scene, with an air ambulance being called out in a bid to help an injured person involved in the crash.

The authorities have not yet confirmed how many vehicles were involved, but one vehicle overturned and there were delays in both directions following the crash.

All lanes were reopened at around 6.20pm.

More information as we get it.