Severe delays, one lane closed and queueing traffic for ten miles due to accident on M25 clockwise at J1B A282 / A296 Princes Road (Dartford), congestion on M25 to Before J29 A127 (Romford). Only lane four (of four) was open for over an hour, but just lane one closed now.
The queues are back through the toll booths, over the QE2 bridge and back to J29.
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