Commuters relying on the Metropolitan line are facing major disruption on Thursday morning.
There are severe delays between Harrow-on-the-Hill and Aldgate/Watford.
At 10.42am, there were also minor delays on the Central and Victoria lines.
Follow the latest updates below...
Victoria line disruption
10:49 , Arielle DombThere are minor delays on the Victoria line between Walthamstow Central and Seven Sisters.
Thameslink disruption
10:45 , Arielle DombThe Thameslink disruption is expected until 1.00pm. Trains running between St Albans City and London St Pancras International may be delayed by up to 20 minutes.
Central line service improves
10:41 , Arielle DombThere are minor delays on the Central line.
Metropolitan line delays
10:30 , Arielle DombThere are severe delays on the Metropolitan line between Harrow-on-the-Hill and Adlgate/Watford.
Central line delays
10:15 , Arielle DombThere are severe delays on the Central line between Hainault and Leytonstone/Woodford, North Action and Ealing Broadway/West Ruislip and Epping and Leytonstone.
There are minor delays between Leytonstone and North Action.
South Western Railway disruption
10:10 , Arielle DombNational Rail says: “Response teams are on their way to site. Until the person's condition has been assessed by staff from the Ambulance Service the train is unable to continue its journey.
We don't know when the lines are expected to reopen.
If you need any help with your journey, please speak to a member of staff or use a station help point.
If you would prefer to use local buses to continue your journey please check Traveline. South Western Railway tickets are not valid on local buses unless stated above.”
South Western Railway disruption
10:10 , Arielle DombSouth Western Railway trains between Wimbledon and Clapham Junction may be delayed or revised, due to a passenger being taken ill at Earlsfield.
The disruption is expected until 12.00pm
Old Street station closed
10:02 , Arielle DombOld Street station is closed while staff fix faulty communication equipment.
Metropolitan line reopens
09:59 , Arielle DombThe Metropolitan line has reopened but there are severe delays between Harrow-on-the-Hill and Aldgate.
Thameslink disruption
09:54 , Arielle DombThe disruption in the Thameslink service between St Albans City and London St Pancras International is expected until 11.30am. Trains may be delayed by up to 20 minutes.
Great Northern trains not stopping at Old Street
09:53 , Arielle DombGreat Nothern trains are not expected to stop at Old Street until after 11.00am.
Metropolitan line disruption
09:51 , Arielle DombThere are severe delays on the Metropolitan line between Harrow-on-the-Hill and Baker Street.
Metropolitan line part suspended
09:44 , Arielle DombThe Metropolitan line is part suspended between Aldgate and Baker Street while staff assist an ill person on a train. London Buses are accepting tickets via any reasonable route.
Crowds at Earl's Court Tube station
09:42 , Arielle DombCommuters wait to board the train at Earls Court Tube station.
CGI video showcases proposed redevelopment of Liverpool Street station
09:31 , Arielle DombNetwork Rail has made a new attempt to win support for its controversial redevelopment of the UK’s busiest train station.
It has released a two-minute “fly through” video using computer-generated images to showcase its £1.2bn plan for Liverpool Street station.
Read the full story here.
Great Northern trains not stopping at Old Street
09:19 , Arielle DombGreat Northern trains will not call at Old Street due to overcrowding at the station. Trains that run to and from Moorgate will run non-stop between Essex Road and Moorgate.
The disruption is expected until 9.45am.
Central line delays
09:17 , Arielle DombThe Central line has reopened but there are severe delays on the entire line.
Minor delays on Victoria line
09:08 , Arielle DombThere are minor delays on the Victoria line.
Labour councils block threat to free travel for over-65s in London
08:57 , Arielle DombLabour council leaders in London have blocked a proposed review of the Freedom Pass that could have restricted the free travel benefits currently enjoyed by 1.2m older Londoners.
Read the full story here.
Warren Street Station exit only
08:40 , Arielle DombThere is no entry to Warren Street station from street level to prevent overcrowding on platforms. Tickets are being accepted on London Buses
Bakerloo line delays
08:31 , Arielle DombThe Bakerloo line is experiencing minor delays.
Bakerloo line resumes good service
08:30 , Arielle DombA good service has resumed on the Bakerloo line.
Thameslink disruption
08:11 , Arielle DombThameslink tickets will be valid for the following routes at no extra cost:
- Southern services between London and Sutton, between London Bridge and Tulse Hill/Streatham, and on any other reasonable route
- Thameslink services via East Croydon, and on any other reasonable alternative route
- London Underground services on any reasonable route
- London Buses on any route between Central London, Wimbledon and Sutton
- London Trams between Wimbledon, Mitcham Junction, West Croydon and East Croydon
- Southeastern services between London Victoria and Herne Hill
- South Western Railway services London Waterloo and Wimbledon
Thameslink disruption
08:08 , Arielle DombThere are delays in the Thameslink service between St Albans City and London St Pancras International due to an earlier incident in which a vehicle hit a bridge between St Albans City and West Hampstead Thameslink.
Trains may be delayed by up to 20 minutes until 9.30am.
Bakerloo line delays
07:50 , Arielle DombThere are minor delays on the Bakerloo line due to train cancellations.
Delays on the A404
07:44 , Arielle DombThere are serious delays on the A404 Harrow Road in both directions at the junction of A219 Scrubs Lane due to utility works.
Delays on the A13
07:29 , Arielle DombThere are serious delays on the A13 Commercial Road in both directions at the junction of A1205 Burdett Road due to utility works. Lane two is closed westbound and the eastbound right turn into West India Dock Road is shut for gas works. Lane two is also closed westbound on East India Dock Road.
Central line disruption
07:20 , Arielle DombPassengers impacted by the Central line disruption are advised that valid tickets are being accepted on the Elizabeth Line, Liberty line, Greater Anglia and London buses, via any reasonable route.
