Avanti West Coast has suspended ticket sales and reduced Manchester to London trains to just one an hour as it limits its timetable due to an "unofficial strike". It will run as few as four trains per hour from Sunday, the train operator has confirmed.
Services between London Euston and Manchester appear to be the worst affected by the cut, with train frequencies reduced from three per hour to just one. The limited timetable will be in place "until further notice", Avanti West Coast said.
The company has also suspended ticket sales for travel from Sunday until September 11 while the new schedule is finalised to minimise the number of people disrupted. Tickets for the following weeks will be released on a rolling, weekly basis.