Temporary traffic lights are causing mayhem this afternoon.

A water main has burst on the A404 in Chorleywood and there are long delays in the area.

The traffic lights have been put up near the junction of Common Lane.

Queues stretch all the way back to Rickmansworth at the junction of the A412.

London Road, Riverside Drive, and Moor Lane are also affected into Rickmansworth.

In the other direction, queues are creeping back towards Little Chalfont, on Amersham Road.

Also in the area, slow traffoc anticlockwise on the M25 between j21 for the M1 and j19 for Watford.

An initial timescale of Friday has been given for the work to be completed.