Long 50-minute delays have been reported on the M25 following a crash. National Highways has issued a four-word warning to drivers amid the disruption.
Live updates on the M25 crash
This is a live blog. Scroll down for the latest updates on the incident and traffic conditions.
Impact on drivers
Motorists are facing significant hold-ups on the major UK motorway as a result of the crash. The delays are expected to continue while the scene is cleared.
Drivers are advised to allow extra time for their journeys and to check for further updates as the situation develops.
