The RMT union has threatened strike action which could cause severe disruption on the Central and Victoria Lines after 19:00 on Fridays and Saturdays until 19 June.

The RMT has called the strikes over introducing new rosters, although they were agreed by the other recognised union and introduced for Tube drivers in August.

The union called the strike action despite the new rosters including assurances that there will be no job cuts, providing certainty and the option of permanent work for those on part-time contracts, and only scheduling night shift working on up to four weekends per year. Also, if preferred, staff can swap their night shifts with their colleagues for duties at other times of the day.

Transport for London (TfL) is urging the RMT to join it for talks so that they can find a way to resolve this dispute and avoid the strikes.

The impact of the strikes will depend on the number of drivers booking on for duty each weekend. Customers should therefore check before they travel on Night Tube services for the most up-to-date information, which will be available ahead of and during the strikes at tfl.gov.uk/tube-strike as well as on the TfL Go app, TfL website and Journey Planner.

Train drivers are the only TfL staff who will be on strike, and stations will remain fully staffed throughout the action. Plain clothes and uniformed British Transport Police officers will also be patrolling the network to ensure the safety of staff and customers.

The Night Tube services were re-introduced on the Central and Victoria lines on the evening of Saturday 27 November. Despite strike action in the run-up to Christmas, TfL was able to run a regular and reliable Night Tube service on the Victoria and Central lines, with a full Victoria line service running throughout the majority of the overnight action.

Night services on London Overground will run as planned on Friday and Saturday nights between Highbury & Islington and New Cross Gate.

Andy Lord, Managing Director of London Underground, said: “We’re disappointed that, once again, the RMT is continuing to push for strike action that is likely to cause further unnecessary disruption. We’re calling on the RMT to join us for talks so we can work together to resolve this dispute around roster changes, which mean no job losses and greater flexibility for drivers.

“If these six months of action do go ahead, we will continue to operate as regular a service as possible. However, customers are advised to check before they travel and use buses to complete their journeys where required. I apologise to them for the impact this unnecessary action will have on their journeys.”

“We’re calling on the RMT to join us for talks so we can work together to resolve this dispute around roster changes”.