Today's strike is part of a long running dispute between the unions and Tube station staff over ticket office closures.

TfL said the number of redundancies caused by ticket office closures would be minimal and staff would be redeployed.

But the RMT union says more than 800 jobs have been axed under TfL's so-called Fit For The Future programme, adding that London Underground was only offering to reinstate 150. 

Most of the 500 new jobs claimed by the company were to fill current vacancies and staff turnover, according to the union.

The Northern Line is operating between Edgware to Golders Green and High Barnet to Finchley Central only.

And the Piccadilly line has trains running from Cockfosters to Arnos Grove only.

The Jubilee Line is operating between Stanmore and Baker Street. No service on the rest of the line.

The Bakerloo Line  is operating between Queens Park and Harrow & Wealdstone only, approximately every 10 mins. No service on the rest of the line.

And the Central line has a service operating from West Ruislip to North Acton only.

Transport for London (TfL) said it would not know the full extent of Monday's disruption until services began to run at 07:00.  

It said any stations which do open on Monday would be likely to open after 07:00 and close by 19:00, with normal service expected to resume on Tuesday.

Though services in Zone 1 are likely to be worst-hit, tweets from TfL's official account, external said it did not know how the wider network would be affected.

In a series of replies to queries from passengers, it said it would not know which stations would be closed "until staff do or don't turn up for work" on Monday.

Image source, Twitter

This is the confirmed Tube disruption taking place today:

• The majority of central London Tube stations will be closed
• Limited service on the District, Circle and Hammersmith and City lines, although trains will not stop at all stations
• No Underground services from stations such as Victoria, King's Cross, Waterloo, Paddington, Euston, Bank and London Bridge
• Piccadilly line services will run between Hammersmith and Heathrow Terminals 1, 2 and 3, but not to Terminals 4 or 5
• No service on the Victoria or Waterloo & City lines
• Limited services on other Tube lines in outer London
• Buses, road and rail services including the Docklands Light Railway (DLR) are expected to be much busier than usual

You can keep up to date on the real-time travel situation with @BBCTravelAlert, external or visit the BBC London's travel page.

Buses, roads and rail services including the Docklands Light Railway (DLR) are all expected to be much busier than usual.

TfL is laying on 100 extra buses and "enhanced" river services to help customers get around the city. Travel Ambassadors will be on hand to advise on alternative routes, but your best bet might be to walk or cycle if you are able.

Here is a walking map of central London, external showing the walking time, in minutes, between stops.

BBC London News

Good morning. We are 12 hours into the 24-hour Tube strike in London with most Underground stations in central London closed. 

We'll be bringing you updates on the travel situation and the latest news on the walkout.

How is the strike affecting you? Get in touch - you can tweet, external, email or leave a message on our Facebook, external page.