More than 50% of Northern Rail services will have to be cancelled because of planned strike action next month, the train operator has warned.
Members of the RMT union are due to walk out on Tuesday 3rd and Thursday 5th October in a long-running dispute over the role of guards and driver-only trains.
The company, which operates across the North East, North West and Yorkshire, said it aimed to run about 1,200 services (46% of its normal timetable).
Most services will end at 19:00 BST.