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A broken down vehicle caused long delays after it blocked both tunnels of the Dartford Crossing.
The car was stopped just before the entry to the tunnel.
All four lanes were shut when the incident happened, but one was later opened to move traffic.
All traffic has now been released, but drivers are told to expect delays still.
Later, another broken down vehicle on the QEII bridge Southbound has closed one lane and caused more delays.
Traffic conditions have returned to normal.