Drivers faced long queues on the M25 clockwise near Godstone on Sunday evening after a police incident brought traffic to a crawl between two junctions.
Traffic monitoring services reported queueing traffic on the clockwise carriageway between Junction 6 at Godstone and Junction 5 for the M26, with congestion stretching through the affected section of the motorway.
Live traffic data showed an active incident between the two junctions, while overhead motorway signs warned drivers of delays and congestion in the area.
Traffic camera images from the scene showed long queues of vehicles and emergency service vehicles on the carriageway, with blue lights visible among stationary traffic.
The exact nature of the incident has not yet been confirmed. Traffic reports initially described the situation as a police incident, although no further details have been released by authorities.
Drivers were advised to allow extra time for their journeys while congestion remained in place.
The affected stretch sits on the Surrey section of the orbital motorway. Junction 6 serves Godstone and the A22, while Junction 5 is where the M26 branches away towards the M20, so disruption there can quickly back traffic up along the clockwise carriageway.
Anyone planning to use the M25 in the area is advised to check live traffic updates before setting off and to allow extra time, as conditions can change quickly while an incident is being dealt with.
No closure of the carriageway has been confirmed, and no reopening time or diversion route has been published. This article will be updated if further details are released.
Elsewhere on the motorway this weekend, a crash near Bluewater caused gridlock on Saturday afternoon, while the planned M25 closure at Junction 15 near Heathrow was postponed to the following weekend.
