Action taken by drivers affected the Piccadilly, Jubilee, Victoria, Central, Northern and Waterloo & City lines
Harry Low
BBC London News
That's it for Friday's coverage of London's most widespread strike action in three years.
You can read the full story here.
We'll have more coverage across the weekend as the Night Tube's resumption is affected by further walkouts on Saturday.
Oh, and yes, some of us will be tackling the Tube on the journey home.
Transport for London's director of customer relations Nick Dent has told BBC London the Night Tube WILL relaunch tomorrow night.
However, he recommended that passengers check before travelling as "there may be a reduced level of service".
He said: "We're confident we'll be running a Night Tube service on the Victoria and Central lines.
"It's a very important milestone for London."
Harry Low
BBC London News
Image source, Getty ImagesAttention turns to the weekend and Sunday's planned resumption of the Night Tube, on the Central and Victoria lines, which is also due to be disrupted.
Another walkout from 20:30 GMT on Saturday means that passengers planning to take their first Night Tube since March 2020 will have to wait a little longer.
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Harry Low
BBC London News
Six London Underground lines have been halted by the city's most widespread strike action since 2018.
Friday's industrial action by the RMT union meant that only 60% of services were able to run, according to Transport for London (TfL).
Three of the lines affected were suspended during various parts of the day with others unable to maintain the frequency of service expected, even with reduced numbers of post-lockdown commuters.
This is the first in a series of walkouts with no indication that talks between TfL and the RMT are due to take place.
Queues for taxis are growing at two major railway stations as Friday's rush hour gets into full swing.
At both King's Cross St Pancras and Euston, queues were seen snaking around as people sought to get to their destination ahead of the weekend.
Keith Prince, Conservative spokesman for the London Assembly's transport committee, has told BBC Radio London today's strike is "almost suicidal on behalf of the unions" given the parlous state of Transport for London's finances.
He said: "It's a mess that's of the mayor's own making but I think the Tube strikers are being very selfish.
"We're in the middle of a pandemic, we're trying to get London back on its feet. This is not the way to do it."
Two lines remain suspended entirely.
Five other lines are operating special services or with severe delays, according to TfL, external.
Image source, TfLOne of London's most iconic venues has warned gig-goers to check travel routes before attending.
Brixton Academy hosts Manchester rock band The Courteeners this evening.
But the nearest tube station, Brixton, is facing a disrupted service until 04.30 GMT on Saturday due to the RMT walkout on the Victoria line.
The venue is accessible by several bus routes and via Northern line trains, which are also facing disruption.
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John Leach from the Rail, Maritime and Transport (RMT) union says today's walk-out is "an indication of how strongly the workforce feel about it".
He told BBC London: “Hundreds and hundreds and hundreds of RMT train drivers haven’t come to work today.
“We think the Tube is a great place to work normally and is a great asset for London.
"We would encourage proper investment for it and for people to be encouraged to use it."
"We remain open for talks but nothing planned currently," a spokesman for Transport for London says.
Tom Edwards
Transport Correspondent, BBC London
Image source, Getty ImagesA picture of a strike from 2012
This isn’t a full strike across all unions and all lines – it affected six and involved only RMT drivers.
That means the impact isn’t as much as in some of the full-scale strikes we have seen previously.
You can also factor in the lower levels of passengers anyway and the fact working from home on a Friday seems to be the new norm for many.
However, the strike took out 40% of services and the RMT union will regard that as a significant in getting their message across.
Seven more strikes are planned so you’d hope there will be talks on Monday.
Thomas Mackintosh
BBC London News
Image source, BBC/Helen WicksThe RMT Union's John Leach has been speaking to BBC London at one of its picket lines in Stratford, east London.
He said: ""I hope TfL and the Mayor of London recognise why these fantastic men and women, who kept London moving through the pandemic, have gone on strike.
"This should be a wake-up call for them."
Another strike is planned tomorrow – intended to hit the relaunch of the Night Tube
Image source, bbcThe mayor of London must "face down" the unions in order to get the Night Tube working, a conservative assembly member has said.
Emma Best, a Conservative London Assembly Member, called the RMT's walkout on the London Underground "an unwarranted attack on London's commuters and visitors by a deluded trade union".
Ms Best, who has previously campaigned for the Nigh Tube to reopen to improve women's safety, said: "Disrupting Londoners’ lives and wrecking the return of London's much-needed Night Tube will achieve nothing.
"Transport for London is only asking drivers to do four shifts a year on the Night Tube to provide Londoners with a safe route home at night. Other trade unions have already agreed to the change.
"The Mayor personally assured me in the London Assembly that he would resolve this dispute so the Night Tube could reopen tomorrow.
"He must stand up for Londoners, face down the RMT union, and ensure the Night Tube reopens in full as soon as possible."
Thomas Mackintosh
BBC London News
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Thomas Mackintosh
BBC London News
Image source, PA MediaThe Piccadilly Line is now completely suspended after running a limited service earlier today.
Limited services continue on the Victoria, Northern, Jubilee, Hammersmith and City and Central lines.
Of the services that are running, the Circle and Hammersmith & City lines both continue to face severe delays due to cancellations.
Wendy Hurrell
BBC London
There’s a queue of around 40 people at the taxi tank outside Liverpool Street Station - many with wheelie suitcases.
Two people collecting money for charity in a bucket are doing their best to cheer everyone up, singing Christmas carols.
The roads have more traffic on them too.
Paul Kirby, a Hackney Cab Driver says it’s busier than normal at all the stations he has been to today.
“Every station has been busier this morning," he said. It’s like old times.”
"The strike is good for business, but it’s not what we want."
Would-be Tube users are queuing in long lines at Liverpool Street Station due to the strike, which has closed six lines.
Image source, @mummysboyfraserHarry Low
BBC London News
Fewer services mean busier platforms.
Some passengers on the Victoria line at Euston station are having to wait for multiple trains as carriages leave full.