Bradley Rees, from the Association of British Commuters, believes it's time for the 'major players' to sit down and resolve the #southernstrike.
TSSA general secretary Manuel Cortes said: "We hope London Underground will resume talks with us without delay so that a resolution to this long-standing dispute can be found."
"The man who created this mess, Boris Johnson, now gallivants around the world whilst our Tube is no longer as safe as it should be after he butchered over 800 jobs.
"LU, our new Mayor Sadiq Khan and unions all agree that more jobs are needed to restore a safely-served Tube.
"Given this, a resolution should not be beyond our wit."
Transport for London urged the Rail, Maritime and Transport (RMT) union and the Transport Salaried Staffs Association (TSSA) to continue discussions to resolve the Tube dispute, which centres around job cuts and ticket office closures.Copyright: BBC
London Underground chief operating officer Steve Griffiths said: "I thank customers for the patience they showed during the unnecessary strike, and encourage the unions to continue talking with us to resolve the dispute.
"We had always intended to review staffing levels and have had constructive discussions with the unions.
"We agree that we need more staff in our stations and have already started to recruit 200 extra staff and this is likely to increase further as we work through the other areas that need to be addressed."
Labour leader Jeremy Corbyn had this to say about the #southernstrike on Radio 4's Today programme.Copyright: BBCQuote Message: The Government seem to be more interested in protecting Southern rail despite its appalling service and shortage of trains, short trains, overcrowding and all that goes with it, and continued allowing them to run the franchise.Quote Message: I would want the franchise brought back into the public ownership and public sector because after all we provide the rails, we provide the trains and they make the profits from running them. from Jeremy Corbyn MP Leader, Labour Party
Southern says the early morning trains were driven by drivers and managers.
The company says it plans to operate eight trains in each direction in the morning and during peak hours between Caterham and the capital.
These trains are driver-only operated. But the company normally operates more than 2,200 trains a day, carrying 300,000 passengers.Copyright: Getty Images
The BBC's Transport Correspondent Richard Westcott took this video at East Croydon station this morning.
- Copyright: EPA
Only 16 trains will run, instead of 2,242 timetabled on a normal weekday.
About 200 bus and coaches will ferry passengers from eight Southern stations to those run by other operators.
The strike involves about 1,000 train drivers in the Aslef union and "a few" in the RMT union. Southern warned commuters not to attempt to travel unless their journey was "essential".
The Duke of Cambridge will visit a hostel run by the homeless charity Centrepoint today.
As royal patron of Centrepoint, William takes a keen interest in its work and, since taking up the post in 2005, has toured a number of its facilities and centres.
The charity helps young people who find themselves homeless and during the visit to the centre in London the Duke will meet some of those being supported by the organisation.
The ongoing disruption on Southern rail is having a huge impact on passengers' lives.
Here's what commuters had to say last night.
BBC Live reporter
That was the question from Christian Brideson to Southern's Chief Executive Charles Horton and Mick Lynch from the RMT Union.
Mr Brideson says he used to commute to London but is now too ill to do so. And he believes the strike has contributed to his illness.
Here's what he had to say at our Southern rail TV debate, which aired last night.
BBC Live reporter
That's the view of Mick Lynch from the RMT Union about the Southern rail dispute.
Here's what he had to say when he was asked why a resolution to the dispute has not yet been reached on the BBC's TV rail debate, which aired last night.
There'll be variable amounts of cloud and a few showers possible during the morning, before becoming mainly dry with generally brighter skies.
The cloud will then thicken from the west late afternoon with perhaps some patchy light rain to end the day.
Maximum Temperature: 8C (46F).
BBC Radio London, Travel reporter
Southern has a very limited service running between Caterham and Victoria.
Trains are scheduled to leave Caterham at 09:34, 10:04, 12:04 and 13:34 then tonight eight trains will leave Victoria. Southern have no service on any other routes.
The Heathrow Express is not stopping at Terminal 4 because of an equipment failure. The rest of the trains have a good service on the whole.
The Tube has a good service on all lines this morning after yesterday's strike but Blackhorse Road station is currently closed because of a shortage of staff.
BBC London News