An RMT strike has wiped out essential Transport for London services causing travel misery for millions of Londoners.
The walkouts, involving drivers, signallers and maintenance staff, are taking place until the morning of Friday, September 12, as a bitter dispute about pay and conditions explodes.
The strike caused significant disruption to the Tube on Monday with all lines shut for most of the day.
Strike action has been significantly ramped up on Tuesday, with the whole of the Docklands Light Railway suspended.
The DLR will be shut again on Thursday - the last day of walkouts being held by members of the RMT union.
Here’s a rundown of key TfL services as of 11am on Tuesday:
Bakerloo Line: Suspended due to strike action.
Central Line: Suspended due to strike action.
Circle Line: Suspended due to strike action.
District Line: Suspended due to strike action.
Elizabeth line: There is a good service on the Elizabeth line but trains are expected to be crowded.
DLR: Suspended due to strike action.
Hammersmith and City Line: No service on the entire line due to strike action.
Jubilee Line: No service on the entire line due to strike action.
Metropolitan Line: Suspended due to strike action.
Northern Line: Running as normal, but some stations may be closed due to staff shortages
Piccadilly Line: Trains are running between South Harrow and Hammersmith and between Arnos Grove and Cockfosters, but there is no service on the rest of the line
Victoria Line: No service on the entire line due to strike action.
Waterloo & City line: No service on the entire line due to strike action.
London Overground: Trains are running on all the London Overground lines, but some services may not stop at all stations or run to their normal destination as Tube stations are shut.