A driver has been taken to hospital and traffic has come to a standstill on the M25 going through Buckinghamshire after a van flipped over in a collision.

The authorities have warned drivers of delays of up to one hour on the clockwise carriageway between Junction 16 and Junction 17, near Gerrards Cross, following the crash.

National Highways has warned of a 10-mile tailback on the motorway as emergency services work on the scene.

Three of four lanes have been closed off for all traffic while recovery takes place.

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It is not clear if any other vehicles were involved in the crash.

Thames Valley Police has warned drivers to abide by the road closure after some were seen failing to follow the instruction.