NewsUK NewsRoad Traffic AccidentsLIVEUpdated 7 mins agoLanes 3 and 4 (of 4) are closed on the M25 clockwise between J24 for Potters Bar and J25 for Waltham Cross due to a traffic collisionM25 trafficThe M25 clockwise has been hit by major delays after a serious crash.Emergency services are at the scene between Junction 24 for Potters Bar and Junction 25 for Waltham Cross.National Highways said in a tweet: "Lanes 3 & 4 (of 4) are closed on the #M25 clockwise between J24 #PottersBar and J25 #WalthamCross due to a traffic collision. Vehicle recovery is being arranged."Current delays of 45 minutes on the approach, with 4 miles of congestion."Today11:26 BSTLong delays continueDrivers are continuing to face lengthy delays on the M25 following the crash.National Highways says there are currently 45-minute delays on the clockwise carriageway, with around four miles of congestion on the approach.Today11:25 BSTQueues continue to buildA new picture from the scene show traffic stretching back as queues continue to build behind the crash.Motorists can be seen crawling along the clockwise carriageway as congestion worsens.M25 traffic(Image: National Highways)Today11:10 BSTWhere? The crash happened on the M25 clockwise between Junction 24 for Potters Bar and Junction 25 for Waltham Cross.Drivers are being urged to expect long delays while emergency services remain at the scene.M25 traffic(Image: AA traffic)‌Today11:10 BSTDelays building on M25National Highways says there are currently 45-minute delays on the clockwise carriageway.Congestion has now stretched back for around four miles.Today11:09 BSTLanes closed after crashTwo lanes remain closed on the clockwise carriageway while emergency services respond to the crash.Recovery is also being arranged, according to National Highways.Today11:08 BSTWhat we know so farDrivers are facing major delays on the M25 after a serious crash on the clockwise carriageway.Emergency services are at the scene between Junction 24 for Potters Bar and Junction 25 for Waltham Cross, where lanes three and four remain closed.National Highways says there are currently 45-minute delays with around four miles of congestion. Vehicle recovery is being arranged.‌