Drivers are facing delays on a motorway due to a broken-down vehicle. Two lanes heading anticlockwise on the M25 are closed between junctions 1A for Dartford and 31 for Lakeside. It is understood to be due to a broken-down vehicle. Queues are snaking back towards Junction 2 for the Darenth Interchange and the A2. National Highways is warning drivers to allow extra time for their journeys with expected delays of 30 minutes. More as we get it.