The M25 has been closed due to an overturned lorry.
The accident has resulted in the road being closed clockwise between junction 23, South Mimms and junction 25, Enfield, A10.
A car and a mini-bus were also involved in the crash. The lorry is back on its wheels and is being unloaded.
Diversions have been put in place but the overturned lorry has caused major delays on the road.
A lane has also been closed on the M25 anticlockwise between the Enfield junction and Potters Bar junction due to barrier repairs.