From 9pm tonight buses will replace trains between Hitchin and Luton Airport Parkway and St Neots and Bedford, as Network Rail finish the repairs to the overhead line problems at Radlett.
Passengers from Hertfordshire, Bedfordshire and Northamptonshire are facing more delays tonight as they try to get home from the capital.
An overhead power line problem at Radlett in Hertfordshire has caused two days worth of problems for those traveling on First Capital Connect, Southeastern and East Midlands services.
Click below to watch Jenny Line's report:
There are still long hold-ups on rail services between Northamptonshire, Bedfordshire and Hertfordshire into the capital following damage to overhead power lines on Wednesday.
The power lines came down at Radlett in Hertfordshire and forced passengers out of stranded trains to walk back to stations along the rails. Trains are now operating along the affected section although there's still disruption as electric trains can use only two of the four lines.
There are delays and cancellations on First Capital Connect, Southeastern and East Midlands services which could continue until tomorrow morning.
Click below for Lauren Hall's report.
National Rail say all four lines through Radlett in Hertfordshire affected by the downed power lines are now running but there are still delays.
Electric services are running on the slow lines and diesel services on the fast lines. There will be further repairs planned for tonight.
Thousands of train passengers are potentially facing severe delays until the end of the week due to "extensive" damage to overhead power cables. Paul Brand has the latest.
Rail passengers have been plagued with problems with major disruption continuing on busy commuter routes into London from Bedfordshire, Hertfordshire and Northamptonshire.
Overhead power cable problems in Hertfordshire caused severe disruption to Wednesday night's evening rush-hour services. On Thursday, two of the four lines between Bedford and St Pancras in London remained closed.
East Midlands Trains journeys between Bedford and London St Pancras were delayed by up to 60 minutes. There were shorter delays on First Capital Connect and Southeastern journeys between Bedford and St Pancras.
Buses are replacing trains between Luton and Luton Airport Parkway and London.
Delays on First Capital Connect trains were expected run into Friday morning, and a spokesman said services would be affected all day on Thursday.
He added: "The damage is extensive - 1km of overhead power cables are down."
Buses are running between Wellingborough and Northampton to connect with London Midland services between Northampton and London Euston
Some rail commuters are facing delays of up to 90 minutes this morning.
Yesterday, major damage to overhead wires was reported.
That affected Southeastern, East Midlands Trains and First Capital Connect services.
Network Rail are reporting that trains are currently unable to run between Luton Airport Parkway and West Hampstead.
First Capital Connect has said there are delays on trains out of Bedford and Luton of up to 90 minutes.
Delays of up to an hour are also reported on East Midlands trains between Corby and St Pancras.
There are some bus replacement services in place.