Tube Strikes Today Latest Update: Third Day of the Strike, Which Tube line will be affected & When will the Strike be called off?
The members of the Rail, Maritime and Transport (RMT) union had announced that they will walk out for 24 hours from midday on Tuesday, April 21, and again on Thursday, April 23.

Source: The Sunday Guardian
The members of the Rail, Maritime and Transport (RMT) union had announced that they will walk out for 24 hours from midday on Tuesday, April 21, and again on Thursday, April 23.