Kent: M25 closed and severe delays anticlockwise between J2, A2 (Darenth Interchange) and J30, A13 (Lakeside), because of a security alert. Diversions are in operation.
Also just in: M25 QE2 Bridge blocked and severe delays clockwise from J31 A1306 Arterial Road West Thurrock to A282, Dartford River Crossing toll booths, because of a security alert. Tailbacks for five miles.