Three of the M25’s four lanes were closed on the anti-clockwise carriageway between junctions 11 and 12 after a serious multi-vehicle crash this morning, causing severe delays on the motorway. The lanes have now reopened and recovery is complete.
Lanes 2, 3 and 4 were initially shut between the two junctions, near Chertsey in Surrey, following the crash. Lane 2 reopened first, and lanes 3 and 4 have now reopened as well, with recovery complete.
The crash was reported on Wednesday morning, 11 November, and the lane closures were confirmed shortly afterwards. Surrey Police has confirmed the crash happened at around 7am and involved multiple vehicles. One person has been taken to hospital for treatment, and police have asked people to avoid the area where possible. South East Coast Ambulance Service said its crews, including a critical care paramedic, treated a male patient for a leg injury at the scene before taking him to St George’s Hospital in London.
Reports suggest a lorry and several vans were involved, but police have not yet confirmed the vehicles involved. The cause of the crash has not been confirmed either.
Delays on the stretch had reached around 90 minutes at their worst, with congestion stretching halfway back to junction 8. Traffic should now ease as the lanes reopen, though drivers are still advised to check conditions before setting off.
Our live blog below followed developments as they happened.
This live blog has now closed. Recovery is complete and all lanes have reopened.
It is the second major disruption on London’s transport network this morning, after Elizabeth line services were suspended following a casualty on the tracks.
The M25 has seen several serious incidents in recent days. A van crash between junctions 7 and 8 near Reigate and Godstone caused long queues on Monday morning, while overnight closures for planned roadworks have been running across the motorway this week.
National Highways has also announced overnight lane closures at Swanley Interchange, at the M25 junction in Kent, from next week as part of improvement works there.
Updated: 11 November 2026 at 10.48am.
