Strikes on the Tube are set to go ahead on Wednesday although industrial action on the DLR has been suspended.
The 48-hour strike is by members of the RMT union working for maintenance firm Tube Lines.
The affected lines are:
The Tube workers are due to walk out for 48 hours from 1900 BST on Wednesday.
However, Transport for London says that all stations will be open and that it doesn't anticipate any significant disruption to services. In a statement, it goes on to say: "Some isolated disruption is possible, so passengers are advised to check before they travel."
Keep up to date during the planned strikes by tuning to BBC London 94.9, or checking the travel section of this site.