Motorists are being warned of delays and lane closures on the M25 in Hertfordshire following a multi-vehicle crash.

https://twitter.com/HighwaysEAST/status/597420402479083520

Traffic was stopped on the motorway anti-clockwise between Junctions 22 (London Colney) and 21A (St Albans) earlier this afternoon (Sunday) following the accident.

The Highways England Twitter feed @HighwaysEAST tweeted: “#M25 anti-clockwise btwn J22-J21a closed due to a serious accident. Trapped traffic being let past scene. Diversion:”

Two of the four lanes past the scene have since been opened, with traffic tailing back towards Potters Bar.

Herts Fire Control’s Twitter handle @HertsFRSControl tweeted: “Traffic on the M25 is now running but lanes 3&4 remain closed, junctions 22-21a”