UPDATED REOPENED M25 horror crash causes 10 mile grid lock

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The #M25 motorway remains closed clockwise between J23 (South Mimms) and J25 (near Cheshunt) following the serious collision this afternoon.


There is now 10 miles of very slow moving traffic, the back of which is approaching J20. Anti-clockwise there is 4 miles of congestion.
The collision saw the air ambulance land and life saving treatment carried out on the carriage following the horrific collision.

There is severe congestion on all approaches to the M25 J23 this evening. Highways England have advised that There’s 10 miles of solid traffic on the #M25 clockwise, 4.8 miles on the #A1M southbound and 4 miles on the #M25 anti-clockwise. They are strongly advise using alternative routes wherever possible.

A full collision investigation has been launched into the cause of the collision

A spokesman for the Met Police said:

Police were called at 2.47pm on Thursday 28 November to reports of a collision between a van and a lorry at junction 25 of the M25 in north London. LAS and London’s Air Ambulance also attended.


The driver of the van believed to be a man in his 30s was taken to hospital. His condition is currently deemed potentially life-threatening. No other injuries reported so far. No arrests, enquiries continue.

Update: 9.16pm A spokesman for Highways England said : Driver who are trapped  with the closures are being asked to return to their vehicles.  The  final recovery truck is on scene and we have officers who are  hoping to reopen the effected carriageways.
Update: 9.31pm There are severe delays of well over 2 hours on the M25 clockwise approaching J23 at South Mimms. This is due to an earlier serious collision at J25 near Cheshunt which closed to motorway to allow for collision investigation works and recovery to be carried out by Metropolitan Police.

The scene is clear and the road has re-opened, however delays are expected to take some time to clear.

Drivers would be  strongly advise considering alternative routes until delays have eased later in the evening.