Overhead line problems have again brought rail delays in the Northampton and Milton Keynes areas.
A report by MPs claims the failures over the West Coast rail contract will cost taxpayers "at least £50 million".
Thousands of train passengers are potentially facing severe delays until the end of the week due to "extensive" damage to power cables.
Virgin confirms it is planning to bid for the East Coast line franchise.
There are problems on Greater Anglia trains in south Essex. A signalling problem is causing disruption at South Woodham Ferrers in Essex
Buses are replacing trains between Wickford and Southminster with journey times extended by up to 30 minutes. Click here for updates.
It's been another day of misery for thousands of rail passengers in the Anglia region. There have been delays, disruption and replacement buses for people trying to get between Northampton and Milton Keynes and on to London.
Once again overhead power lines which have caused numerous problems in the past few weeks have been at the centre of the trouble and it seems the disruption is still continuing this evening.
Elodie Harper has been following today's events you can watch her report by clicking below:
Click here to watch an interview with Network Rail about the problems on the trains.
Network Rail has apologised for rail delays and disruption between the capital and stations in Milton Keynes and Northamptonshire.
Power lines were brought down at Wolverton near Milton Keynes this morning.
The National Rail Enquiries website has the latest details on the rail disruption.
Dyan Crowther from Network Rail said the lines were re-opening and repair work would continue over the weekend.
Rail commuters trying to get from Milton Keynes and Northampton to the capital have been suffering major delays after problems with overhead power lines.
ITV News Anglia has heard how one man from Hemel Hempstead in Hertfordshire may now miss his father's funeral because of the delays.
Click below for a report from Northampton from ITV News Anglia's Elodie Harper:
Click here for the latest information from National Rail Enquiries
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."
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.
There have been severe delays for some passengers this morning. Replacement buses are running on London Midland and Virgin services between Milton Keynes and Northampton - and on to Wellingborough to pick up connections to London. It's being caused by overhead line problems.