DRIVERS were frustrated after a crash on the M25 left the west tunnel of the Dartford crossing closed.

All lanes have now reopened northbound but there remains heavy congestion in the area with delays of around an hour and traffic queuing back to junction three.

Both lanes in the west tunnel had been closed due to the incident involving three lorries and a van which happened at about 11.40am. 

Road users are advised to check conditions before they set out, to plan their journeys and leave plenty of extra time.