Delays were reported as far back as Junction 4 near the Orpington Bypass following a crash on the M25 anticlockwise close to the Dartford Tunnel.
Traffic has mostly returned to normal, although some delays persist around Junction 3 (Swanley Interchange).
Kent Police clarified that the collision involved two vans and one car, not two cars and a van as initially reported.
Kent Police was called at 12.33pm on Friday, November 7, 2025 to a report of a collision involving two vans and a car on the A282 northbound near Dartford. Officers are in attendance alongside South East Coast Ambulance Service and are assisting with traffic flow.
National Highways noted congestion spreading down to Junction 4 due to the earlier incident, confirmed also by traffic monitoring site Inrix, which states that all lanes have now reopened.
Summary: A collision involving two vans and a car caused significant delays on the M25 anticlockwise near Dartford Tunnel, but lanes reopened by early afternoon with residual minor delays.