The lorry collided with a barrier at around 1pm, causing "significant damage" and miles of tailbacks.
Traffic collisison on the M25 near Dartford. Highways England
The main M25 carriageway is closed anti-clockwise within J2 near Dartford as a result of the accident, and the A2 is closed in both directions within the Darenth Interchange.
*Incident* #M25 anticlockwise at #J2 is fully closed as is the #A2 in both directions at the #A2Interchange junction - due to a traffic collision- our #Trafficofficers are on scene dealing
— Highways England (@HighwaysSEAST) April 7, 2021
Traffic collisison on the M25 near Dartford. Highways England
The HGV is currently perched above the A2 on a motorway bridge, and Highways England said in a statement that as can be seen from the images, this is a "complex recovery and repair operation."