Overrunning engineering works between St Bees and Parton means all lines are blocked. As a result, buses will replace trains between Sellafield and Workington.
Disruption is expected until the end of the day on Friday 1 August.
Customer advice:
Replacement buses are currently running between Sellafield and Workington.
Please see station information posters for the location of bus pick up points.
Journey times may be extended by up to 60 minutes whilst travelling by road transport.
Train services between Lancaster / Barrow-in-Furness and Carlisle will terminate at Sellafield and restart between Workington and Carlisle.