Highways England is warning of two-hour delays on the M25 in Hertfordshire after a crash involving an overturned lorry.

This evening the clockwise carriageway has been closed between Junction 17 to Junction 20 following an HGV crash.

On the opposite anti-clockwise carriageway, the M25 is closed with Junction 18.

Highways England warns of “severe” delays in both directions.

According to Highways England’s traffic map, traffic is at a standstill all the way back to Junction 21a for Bricket Wood and the North Orbitol Road for Chiswell Green.