Tube drivers have announced they are going on strike on the first working day after the Easter weekend.
The strike on the Jubilee Line is the first of two over working conditions and claims of bullying.
Paul Brand has the latest from Transport for London's headquarters.
More top news
Members of the RMT union will walk out for 24 hours from 12 noon on November 7 following industrial action last month.
A Grenfell survivor told an inquiry it is a "slap in the face" for firefighters to suggest they would change nothing about their actions.
Minister for London Jo Johnson has been urged to back the extension of Oyster and contactless payments to Luton, Stansted and Southend.