Travellers from Preston train station have been warned to expect major delays today.
No trains are running from Preston to Carlisle due to flooding on the line between Oxenholme Lake District and Penrith.
A spokesman for National Rail said the disruption is set to continue until at least 4.30pm.
The disruption effects Virgin Trains between Birmingham New Street and London Euston and Glasgow Central and Edinburgh.
And also impacts First TransPennine Express services between Manchester Airport and Glasgow Central and Edinburgh.
The spokesman urged travellers to check their journey.
They said: “An obstruction on the line between Oxenholme Lake District and Penrith means trains are currently unable to run between Preston and Carlisle.
“There is no firm estimate yet of how long disruption will last but it is likely to continue until at least 16:30.
“You can follow this incident using the hashtag #Penrithtrains.
“To check your journey, please use the National Rail Enquiries real-time Journey Planner.”