- 10 updates
The M20 London bound has now re-opened after a lorry jack-knifed and fell into an embankment shortly after 05:00 this morning.
Police closed the motorway between J3 and J1 while the lorry was recovered and the barrier repaired, leaving drivers facing long delays.
Traffic has now returned to normal.
The Environment Agency has been attending the M20 lorry crash and took this picture at the scene.
There have been severe tailbacks on the M20 after a lorry jack-knifed just after 5am this morning.
Police say the road may not be reopened until midday.
Kent Police say that the M20 could remain closed until midday while the lorry is recovered. They say that the full width of the road is required to remove the lorry from the ditch.
Kent Fire and Rescue Service is attending the scene following reports of a fuel leak.
Kent Police are advising drivers to avoid the M20 between junctions 3 and 1 on the London-bound carriageway after a serious accident.
Police were called at 5.10am to a report that a lorry had jack-knifed and collided with the near-side barrier before falling down an embankment.
M20 London bound closed, very slow traffic due to recovery work and earlier accident, a lorry down the embankment involved between J3 M26 and M25 / A20 (Swanley Interchange), congestion on M20 to J4 A228 (Leybourne / Snodland).
The main problem is for traffic heading from Kent to Essex as there is no direct access to anticlockwise M25 from the M26. Police say the road will be closed until at least lunchtime.
Diversion - for traffic wanting to use the anticlockwise M25- travel to J6 at Godstone and turn around.
We're now getting reports that queues on the M20 in Kent are causing delays through Maidstone.
Kent Police have tweeted: M20 between J2 and 3 remains closed after a lorry overturned just before the Swanscombe under road. No injuries reported.
We're getting reports of major delays on the M20 in Kent after a lorry went down an embankment at J3 with tailbacks to J7.
Severe delays due to earlier accident on M25 anticlockwise between Clacket Lane Services and J5 M26 / A21, congestion on M25 to J9 A243 / A244 / B2430 (Leatherhead).
Lanes one and two (of three) were closed from about 2.30pm until 7.30pm following an accident within the roadworks. Long queues are still being reported with delays of well over two hours.
Road users are advised that two lanes are still closed on the anti-clockwise M25 between junctions 6 and 5 in Kent due to an incident.
The incident, which happened just before 2.30pm, involved a lorry and a car. Delays are severe with queues past junction 8.
The Highways Agency and its contractors are working hard to reopen the lanes as soon as it is safe to do so, but it is expected that recovery will take some time as the lorry is stuck on the verge.
There are concrete bollards on the carriageway which need to be cleared. Once this is done an assessment will be made of the carriageway and it is hoped to re-open a second lane.