There are several roadworks dotting the motorways around St Albans, Welwyn, and Hatfield between Monday, February 12 and Sunday, February 18.
Police were called to a crash on the M25 involving a car and lorry.
Traffic came to a halt in both directions between Junction 24 for Potters Bar and 25 for Waltham Cross this evening while police dealt with an incident on the M25.
The 60-year-old Vauxhall Corsa driver who died in the M25 crash in Potters Bar at the weekend has been named by police as Daniel Dayalan.
Emergency services are on the scene of a crash between Potters Bar and Waltham Cross on the M25, involving a number of vehicles.
Highways England is warning of long delays on the M25 clockwise carriageway following an incident involving a trailer.
Highways England is warning motorists of continuing delays on the M25 following a blaze.
Two lanes of the M25 were closed at about 4.40pm today following a collision between Junctions 25, which connects with A10 at Waltham Cross, and 24 for Potters Bar.
Highways England is warning motorists of M25 delays in the Potters Bar area following reports of a crash involving two lorries and a car.