Drivers are facing delays on the M25 following a collisions between two vans and a lorry.
Traffic is building at the Dartford Crossing and cars are queueing for four miles.
It comes after a three-vehicle collision at around 7am on the M25 clockwise at J1B for the A282, Dartford.
All lanes have been reopened following the crash, but motorists are still facing 50 minute delays.
Drivers are warned to expect delays on their usual journey.
Highways England tweeted: "Although all lanes are now open be aware that there are delays of about 50 mins on the clockwise M25 from J28 (#A12 #Brookstreet).
"Please allow plenty of extra time if travelling on the M25 clockwise through Essex towards to the #QEIIBridge #DartfordCrossing."