National Rail says there's major disruption to trains in Northamptonshire and the Milton Keynes area because overhead lines were brought down at Wolverton.
These are the details of the disruption to London Midland services:
A train shuttle service between Milton Keynes Central and London Euston, departing Milton Keynes Central on the hour and 30 minutes past the hour, and departing London Euston at 24 & 54 minutes past the hour.
Trains between between Rugby / Northampton and Milton Keynes Central are suspended. Buses are running instead.
Buses are running between Northampton and Wellingborough to connect with East Midlands Trains services to and from London St Pancras International
Buses are running between Milton Keynes Central and Luton Airport Parkway to connect with East Midlands / First Capital Connect services to / from London St Pancras International.
Journey times are being extended by up to 2 hours.
These are the details of the disruption to Virgin Trains on the West Coast Mainline:
Virgin Trains are running a reduced service between Rugby and London Euston. Journey times are being extended by up to 30 minutes.