What services are affected?published at 06:45 British Summer Time
Transport for London say that little or no service is expected across the Tube network today, with severe disruptions to journeys.
The Tube status website is currently showing that all lines are suspended across their entire routes.
TfL says its other services, including the Elizabeth line, London Overground and trams, will be running normally but are likely to be extremely busy.
They also warn that they may not stop at stations shared with the Tube.
Image source, Tfl