Seven-vehicle M25 crash 'seriously injures' motorcyclist

Drivers faced delays of up to an hour and a half and miles of queues in both directions between junctions 16 for the M40 and 17 for Rickmansworth - with delays tailing back towards Watford.

A Thames Valley Police spokesperson has now confirmed that six cars and one motorcyclist were involved in the pile-up clockwise at around 6.40am (September 19).

Motorists queuing for miles at junction 17 for RIckmansworth at around 7.24am. (Image: Motorway Cameras) The man suffered serious but not life-threatening injuries and was rushed to hospital, while no other injuries were reported.

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The South Central Ambulance Service has been contacted for more details.

Motorway cameras showed traffic at a standstill as three lanes were shut clockwise for around three hours before the M25 was gradually reopened.

All lanes have re-opened on the #M25 clockwise #Buckinghamshire between J16 #M40 J1A #Uxbridge and J17 #Rickmansworth following a serious collision.

Thank you for your patience, please have a safe onward journey. pic.twitter.com/IzFjkpi0X7

— National Highways: East (@HighwaysEAST) September 19, 2024

Drivers heading anticlockwise also faced five miles of delays as they passed the crash site.

After officers conducted a clear-up, the road was fully opened by around 10.16am and traffic appears to have mostly cleared, according to Google Maps.