There are delays on the M25 and on local roads this afternoon following a crash.

All lanes are now open clockwise between j20 for Kings Langley and j21 for the M1 after collision involving several vehicles.

An ambulance attended the scene according to Highways England.

There are delays clockwise from before j17 for Maple Cross and slow anticlockwise between j19 and j18.

The A41 between Hunton Bridge and Kings Langley, the M25 exit slip road at j19 for Watford, the A404 between Rickmansworth and Chorleywood, and the A405 in Bricket Wood are all affected.