Action will bring services to early finish on Sunday evening and close underground entirely for four days from Monday

Tube users have been urged to check before travelling this week as strikes by staff escalate, bringing services to an early finish on Sunday evening and closing the London Underground entirely for four days from Monday.

The RMT union has batted back pleas to call off the industrial action, involving about 10,000 workers, as it attempts to secure a shorter working week as part of pay negotiations.

The series of strikes will mean almost no tube trains running until Friday, with other transport in the capital likely to be affected by crowding and congestion.

London’s other rail services – the Elizabeth line, London Overground and national rail services – will continue to run, as will buses. Some central rail stations with tube interchanges will be closed.