Commuters trying to get from Milton Keynes and Northampton to the capital are facing rail delays after a problem with overhead powerlines. Replacement buses had to take passengers on to Wellingborough to get connections into London.
Richard Brooks from London Midland said: "We're doing everything we can and there's lots of people within the industry working very hard to minimise the disruption. I would say the disruption will carry on until the end of today."
Overhead line problems have again brought rail delays in the Northampton and Milton Keynes areas.
Thousands of train passengers are potentially facing severe delays until the end of the week due to "extensive" damage to power cables.