Engineering work is taking place between London St Pancras International and Cricklewood and between Chesterfield and Sheffield, closing some lines.
A reduced timetable will operate to / from London St Pancras International.
One train per hour will run between London St Pancras International and Nottingham, and between London St Pancras International and Sheffield.
An amended timetable will operate between London St Pancras International and Corby.
Additionally, the 08:22 and 09:22 Sheffield to London St Pancras International trains will depart Sheffield earlier than normal due to a diversion between Sheffield and Chesterfield extending journey times.
Check before you travel:
You can plan your journey using the National Rail Journey Planner.