Essex Police closed QE2 Dartford Bridge on 12 March, causing traffic jams and delays on M25.

Essex Police closed the QE2 Dartford Bridge due to concerns for a man's welfare on 12 March. The closure led to severe traffic jams on the M25, causing delays of up to three hours for southbound vehicles and a 90-minute delay for northbound traffic. Southbound traffic was diverted through the east-bore of the Dartford Tunnel, halving its capacity, while National Highways advised drivers to avoid the area if possible and use alternative routes.