M25 traffic: Hour-long delays between junctions for M40 and Rickmansworth
Two lanes of a busy motorway are shut - and it is causing drivers long delays.
The outside two lanes of the clockwise M25 are closed between Junction 16 for the M40 and Junction 17 for Rickmansworth in Hertfordshire after a collision.
National Highways says that there are delays of more than an hour now, and added: “Please allow extra journey time if possible.”