According the the union, Unite, London Underground faces the prospect of a complete shut down this Bank Holiday weekend as workers, who control the power to run the trains, prepare to strike.
Unite regional officer Hugh Roberts said:
"There is a real possibility that the underground could close down over the bank holiday weekend. Unite is working very hard to achieve a fair settlement for our members - and to avoid the industrial action. The ball is very much in the management's court."
More top news
Eurostar passengers were left stranded last night after migrants reportedly climbed on top of trains at Calais.
He is the first professional rugby union player to do so - and told ITV News he hopes he can be an inspiration to young people.
An inquest into the death of a 14-year-old cadet heard how his teammates tried to radio for help in his final moments.