Four-vehicle crash blocks M25 near Watford
A collision involving four vehicles has closed the anti-clockwise M25 motorway near Junction 20 (A41 interchange) close to Watford, leading to delays up to an hour.
Traffic impact and diversions
Traffic is being diverted via the exit and entry slip roads to leave and rejoin the motorway at Junction 20. Congestion has stretched to about three miles, with delays of 30 minutes reported initially and increasing to approximately 50 minutes by 8:30pm.
Official updates
National Highways reported delays of around 50 minutes as of 8:30pm, and congestion near five miles at 8pm, extending back towards the M1 motorway. Herts Police and the East of England Ambulance Service are attending the scene.
“We are currently dealing with a high volume of traffic on the M25 anticlockwise at Junction 20 (Watford/Kings Langley) following a road traffic collision. We would ask you to please avoid the area at this time.”
Police spokesperson
Social media reports
The official account for National Highways: East tweeted that police and ambulance services are on site, confirming the collision and advising motorists about diversions and congestion.
Author's summary: A four-vehicle collision near Watford has caused significant delays on the M25 anticlockwise at Junction 20, with emergency services managing traffic and advising road users to avoid the area.
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