A serious collision involving four vehicles has led to the closure of the M25 near Watford, causing significant traffic disruption.
The anti-clockwise carriageway of the M25 is closed within Junction 20, near the A41 interchange. National Highways reported around 50 minutes of delays as of 8:30 p.m. Traffic is being diverted through the exit and entry slip roads at Junction 20.
“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.” — Hertfordshire Police spokesperson
Police units and the East of England Ambulance Service are present at the scene. Congestion, which reached about five miles as of 8 p.m., is now extending back toward the M1. Motorists are being urged to seek alternative routes.
Author’s summary: A four-car crash shut down part of the M25 near Watford, triggering heavy congestion and prompting police to advise drivers to avoid the area.