Train services between Rugby and Milton Keynes have been changed.
Some of the southbound lines between the two stations have been blocked because of an on-going safety inspection of the track.
The services running through these stations may be delayed or diverted via Northampton.
Disruption is expected until 11.30am.
There are currently delays and cancellations of train services on all lines between Birmingham New Street and Northampton.
Emergency services dealt with an incident near the railway services this morning and the lines have reopened but trains may still be cancelled or delayed by up to 60 minutes.
Disruption is expected until 11am
For information about the delays at Northampton click here .