The line is now open between Wellingborough and London St Pancras.
We are sorry if you were affected by the disruption to our services yesterday between Wellingborough and London St Pancras International.
The signalling has been restored overnight and a normal timetable will be in operation today.
If you were affected by the disruption yesterday you can use your ticket from Wednesday 27 December to travel today, at no extra cost.
If you were delayed over 15 minutes, remember to claim delay repay compensation. It's quick and easy to apply on our website here.
If you did not travel and wish to instead claim a full refund for your journey, you can check how to do this here. Please note, that refund methods will vary depending on where and how you purchased your ticket.
Network Rail advises that the work has been completed to restore the signalling between Luton and London St Pancras. A normal timetable will be in operation today.
Following the disruption to our services yesterday, tickets dated Wednesday 27 December, can be used on services on Thursday 28 December