Govia Thameslink Railway "strongly urges" customers to plan ahead and check their travel due to industrial action.

Strike action by the ASLEF train driver's union is set to go ahead between Wednesday, May 31 and Saturday, June 3, with no train services in any location.

On Thursday, June 1, there will be knock-on disruption from the previous day’s strike and operators have been notified of a ban on overtime by ASLEF.

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To help customers plan, an amended timetable with fewer services will run with fewer short notice alterations.

There will be a late start to services in some locations and first trains are likely to be very busy.

Unfortunately, passengers may have to queue and may not be able to board their preferred service.

Great Northern trains on Thursday, June 1, will run as follows:

  • London Kings Cross and Cambridge – One train per hour
  • London Kings Cross and Letchworth – One train per hour, in peak hours only
  • Moorgate and Welwyn Garden City – Two trains per hour
  • Moorgate and Stevenage via Hertford North – Two trains per hour

While Thameslink trains on Thursday, June 1 will run as follows:

  • Bedford and Brighton – Two trains per hour
  • St Albans and Sutton via Mitcham – Two trains per hour

On Friday, June 2, RMT unions strike action will limit services across the network, with a later start, an early shut down and no service in some locations.

Jenny Saunders, customer services director, GTR said: “We’re sorry that this period of industrial action is again likely to disrupt travel and people’s plans, especially during half term week where no rail services will be available on either Friday or Saturday."

Passengers are advised to check their journeys in advance at