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Traffic is queueing at the Dartford tunnel after an earlier crash involving two cars and a van.
The accident happened between J1a of the M25 anti-clockwise for Swanscombe and J31 for West Thurrock.
Tailbacks have reached J2 for the Darenth Interchange in Kent.
All lanes have been re-opened, and the tunnel has been cleared and re-opened.
For more traffic and travel listen to kmfm.