A three-vehicle crash is causing traffic at the Dartford Tunnel this evening (January 22).

Traffic is moving very slowly anticlockwise due to the incident, which happened on the M25 between Swanscombe and West Thurrock.

Congestion has spread along the M20 as far as the Swanley Interchange.

The eastern bore of the tunnel was briefly closed at around 4pm.

It is not thought anyone was hurt in the crash.