There are major delays on the M25 in Hertfordshire this morning.

Three lanes were shut anticlockwise between j17 for Maple Cross and j16 for the M40 after roadworks overnight overran.

Drivers have been stuck in queues for around 90 minutes and the tailbacks have had a knock on effect on roads around Watford, Rickmansworth, and St Albans.

Highways England says all lanes on the M25 are now open and has apologised to motorists caught up in the delays.

But there are still queues back to j21 for the M1 - however this should now begin to ease.

Local roads to avoid include:

A414 between London Colney and Park Street

A405 between Chiswell Green and Bricket Wood

Hempstead Road between the A405 and Watford town centre

j19 entry slip at Watford

Also delays on the A404 in both directions in Chorleywood and in Solesbridge Lane and Redhall Lane in Sarratt and Chandlers Cross.

Elsewhere slow on the A1 southbound in Borehamwood and also in Elstree due to Watford Road closure.

Delays westbound on North Circular between Edmonton and Arnos Grove.

Heavy traffic on the A1006 in Leyton and A104.

M11 remains slow between M25 and A406.