Update: 1900 hrs
Very slow traffic and one lane closed on A13 eastbound in Grays at Tilbury, because of an accident involving four vehicles. Congestion to the M25 J30 junction.
Update: 1700 hrs
M25 Essex – Very slow traffic on M25 clockwise at A282, QE2 Bridge, because of earlier police incident. All lanes have been re-opened. Congestion to J28, A1023 (Brook Street Roundabout).
Very slow traffic and heavier than usual traffic on A1306 Arterial Road London-bound in Thurrock between Treacle Mine Roundabout and the M25 J31 junction.
Long delays and heavier than usual traffic on A13 westbound between Tilbury in Grays and the M25 J30 junction in Lakeside.
Update: 1615 hrs
Essex Police statement
Police were called to the QE2 Dartford crossing bridge at 2.50pm today following reports that a man had left his vehicle and climbed over the edge of the bridge.
Officers attended and successfully negotiated with the man who then climbed back to safety. The bridge was closed for a time during the incident, but should reopen shortly.
Motorists are advised that it may take some time for congestion in the area to clear.
Update: 1605 hrs
The police incident is now over but there will be residual delays
Update from Highways Agency
We are assisting @EssexPoliceUK by closing #A282 QE2 Bridge #M25 clockwise please consider alternative routes delays building
Incident: 1545 hrs
M25 Essex – M25 blocked and stationary traffic clockwise at A282, QE2 Bridge, because of a police incident.
Tunnel closed on QE2 Bridge anticlockwise from Dartford River Crossing toll booths
Ensign Bus Co: On diversion between Lakeside & Uplands Estate BOTH WAYS. Unable to serve Thurrock Services. Severe Delays likely