Motorists faced queues nearly 10 miles long clockwise around Dartford Pass on the M25 following a vehicle fire.
All clockwise lanes of the M25 from junction 1a (Swanscombe) to junction 1b (A296 Princes Road, Dartford) were stopped at 10.25am.
All four lanes reopened at 12:35 p.m.
Queues formed around the Essex-Kent border after authorities closed the road at around 10.25am.
Elsewhere, traffic was backed up anti-clockwise for nearly four miles on the M25 near Waltham Cross in north London on Friday due to roadworks.
According to live data provided by Inrix, the slow-moving traffic jam stretched from junction 26 (Waltham Abbey) to junction 25 (A10 Enfield) around a construction site.
On the tube, there were serious delays on the Northern line following the fire alarm at Colindale.
There is no surface service between West Croydon and Sydenham due to signal failure. The outage is expected to last until 15:00.
All other lines provide good service.
Two lanes now closed – two lanes open on the M25 at Dartford
11:10 , Will Mata
There is a queue of traffic on the clockwise M25 from J1a A206 (QE2 Bridge) to J1b A296 (Dartford) and two lanes are closed due to a vehicle fire.
Traffic congestion has resumed at J30 (A13 Lakeside) over the bridge.
Lanes one and two (four lanes) will remain closed following a 25-minute wait until 10:45am.
Counterclockwise queues are also forming due to a separate fault.
London Overground suspended
11:11 , Will Mata
There is currently no service between West Croydon and Sydenham due to signal outage in West Croydon.
Transport for London said tickets were accepted on any reasonable route on the London Underground.
Serious delays on the Kuzey Tube line after fire alarm
11:13 , Will Mata
The Northern Tube line is no longer partially suspended but there are still delays following the fire alarm in Colindale.
The entire line appears to be facing delays following the incident on Friday morning.
Traffic around Dartford now up to 10 mph
11:23 , Will Mata
Live data shows queues around Dartford Pass now stretch for nearly 10 miles.
Two lanes have been reopened following a fire early this morning, but traffic is taking some time to adjust.
National Highways tweeted: “There are delays approaching, please allow extra time for your journey.”
Lane 2 (of 4 lanes) is closed. #M25 Clockwise between J1A #Dartford and J1B #Stone Due to vehicle fire.
Fire Brigade and National Highways Traffic Officers are at the scene.
There may be delays on approach, please allow extra time for your journey. pic.twitter.com/cpmX6rCPBL
— National Highways: Southeast (@HighwaysSEAST) June 21, 2024
There are now only minor delays on three metro lines
11:36 , Will Mata
According to Transport for London data, the previous problems that caused the Northern line to be suspended are now gone.
There will now be minor delays on this line plus Piccadilly and Central.
This could cause subway trains to be delayed by just a few minutes – if at all.
Overground is still partially suspended.
One lane was closed to traffic due to vehicle fire
11:57 , Will Mata
There are still long delays and one lane is closed on the M25 following a vehicle fire on the M25.
Previously, 4 lanes were closed.
Delays are from junction 1a (A206/QE2 Bridge) to junction 1b (A296/Dartford).
There is now traffic congestion halfway along the J29 A127 to Romford via the QE2 Bridge.
Disruption between Peterborough and London Kings Cross
12:12 , Will Mata
Disruption is expected on the LNER line between Peterborough and London Kings Cross until 14:00.
National Rail tweeted that an incident at Huntington was causing delays.
National Highways making progress in Dartford
12:18 , Will Mata
Lane 1 (4/4) is closed clockwise on the M25 between J1A Dartford and J1B at Stone due to a vehicle fire.
Previously it consisted of four lanes.
Service Contractors and National Highways Traffic Officers are on scene.
“There are delays approaching, please allow extra time for your journey,” the organization tweeted.
Long delays on the M25 between Enfield and Waltham Abbey
12:34 , Will Mata
There are now long delays on the M25 counterclockwise from J27 (M11) to J25 A10 (Enfield).
The delays are said to be due to a construction project
The back tails are now two miles before J27 and one mile after J25.
All lanes now reopen in Dartford
12:35 , Will Mata
All clockwise lanes on the M25 between J1A (Dartford) and J1B (Stone) have reopened following a vehicle fire.
All four lanes were closed at the summit.
Disruption in West Croydon will last until 3pm
12:53 , Will Mata
The West Croydon incident, which caused delays on trains and the Overground this morning, is expected to last until 3pm.
Signal failure means there is currently no service to Sydenham.
Minor delays on the Central Line
13:15 , Sami Quadri
There are minor delays on the Central Line between Leytonstone and Hainault via Newbury Park due to train cancellations.
Major traffic delays on the A2 in Greenwich
14:02 , Sami Quadri
Delays are expected due to temporary traffic signals on Blackheath Road at the junction with Lewisham Road due to Thames Water’s work following a burst water main.
Tree-blocking railway in Hertfordshire on the way to Stansted Airport
14:15 , Will Mata
Passengers heading to London Stansted Airport are seeing services delayed due to a fallen tree on the Liverpool Street line.
Lines have reopened after a tree blocked the railway at Sawbridgeworth in Hertfordshire.
Greater Anglia has warned that trains running between Broxbourne and Bishops Stortford may be canceled or delayed by up to 50 minutes until services return to normal.
The line continues beyond Stortford to Cambridge or Stansted Airport.
The line was reopened after trees fell on the rails
14:56 , Will Mata
Disruption is expected until 4pm after a tree fell on the line between Broxbourne and Bishops Stortford, near Sawbridgeworth.
There were delays on the line from London Liverpool Street to Cambridge and Stansted Airport after the incident in Hertfordshire.
Travel time on the Dartford Pass is now 25 minutes
15:27 , Will Mata
There is still 10 miles of slow moving traffic on the Dartford Crossing, but the crossing now takes around 25 minutes to complete.
The delay is due to an earlier minibus fire on the M25 just after junction 1.
There is currently traffic congestion on the J29 A127 Romford via the QE2 Bridge.
