Long delays due to earlier police incident on M25 Dartford Tunnel anti-clockwise at Dartford Tunnel Toll Booths, congestion on M25 to J2 A2 (Darenth Interchange).
All lanes have been re-opened. Both Dartford Tunnels were briefly closed until just after 5pm because of an earlier police incident just after the tunnels.
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Police want to speak to men in connection with an assault in Gravesend.