Two vehicles have been involved in a crash on the M25.

The incident took place prior to 12.06pm this afternoon (Saturday, July 29), on the road's clockwise carriageway between Junction 23 and Junction 24.

Officers from both National Highways and the BCH (Beds, Cambs and Herts) Road Policing Unit attended the scene near South Mimms and Potters Bar.

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One of the road's four clockwise lanes was closed at the time, with four miles of congestion being formed.

This lane was later reopened, with residual delays of 20 minutes being experienced by motorists at the time.

                                                                                            

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A spokesperson for National Highways said at the time of the incident: "One lane (of four) is closed on the M25 clockwise between J23 (for South Mimms) and J24 (for Potters Bar) following a two vehicle collision.

"National Highways Traffic Officers and the BCH Road Policing Unit are on scene.

"There are delays of up to 19 minutes and approximately four miles of congestion on approach."