Jeremy Corbyn said: “Boris Johnson should concentrate on doing his job as mayor, and get around the table with the trade unions who are clear that they want to talk.

“Londoners deserve a Mayor who will talk to the workforce, not start fights that lead to disruption.

“No one is fooled by the mayor’s spin that this is primarily about pay. There is big concern that in stations outside central London, night tubes will be stopping at stations that will have no minimum staffing levels – which could mean just one member of staff dealing with the public coming home after a late night out. This is a safety nightmare and clearly not good for these staff or the public.

“Boris Johnson has presided over worsening employee relations on the Tube. He must now talk and end the disruption that his approach has caused.”