The First Great Western service between Par and Newquay is suspended due to emergency works between Luxulyan and Newquay.
Replacement buses have been requested but are not in place yet.
More top news
Police have launched a murder investigation following the suspicious death of a man in his 20s in Plymouth.
It's looking like it'll be a dry night, with sunny spells tomorrow. Here's Helen with your forecast.
Tonight will be dry with clear spells for most, although there may be some isolated fog patches as we head towards the early hours.