The driver of a car which overturned on the motorway this afternoon walked away from the wreckage uninjured, the emergency services have said.

The crash, which happened on the same stretch of road where two lorries and a car crashed this morning, happened at about 1.35pm on the southbound carriageway between junction 6 (Lewknor) and 5 (Stokenchurch).

Bucks Fire and Rescue were called out along with police and paramedics, but the man was released from the overturned car before they arrived.

Earlier today, oil, coolant and liquid chocolate leaked on the road following a crash involving two lorries and a car.