Rail passengers due to use the East Coast main line are being urged to delay their travel after an overhead wire problem prompted huge disruption to the service at the end of the bank holiday weekend.
A spokesman for the rail provider said the problems were likely to cause further delays at the start of service tomorrow.
Passengers aboard trains on the East Coast main line have complained of delays of around eight hours after severe disruptions hit the service.
Rail commuters heading into London following the bank holiday are facing severe delays on one of the UK's key train routes.
Overhead wire problems between Peterborough and Stevenage caused extensive disruption to services on the East Coast main line heading into London King's Cross yesterday and engineers worked through the night to repair the damage.
The problems have affected a number of train operators who have warned passengers the issue will continue throughout today, with severe delays and cancellations.
An articulated lorry driver got stuck down a narrow country lane after following his sat nav - forcing a road to close for two hours.
Officers from Hertfordshire Police arrived to find the vehicle wedged across a tight three-way rural junction between two high hedges in the village of Watton-at-Stone, near Stevenage, yesterday.
A specialist recovery vehicle was called to deal with the problem.
"Sat navs are amazing pieces of technology - don't always trust them," read a tweet from the force's East Hertfordshire rural police team.
Detectives from Hertfordshire Police are urgently seeking to trace 22-year-old Jack Wall in connection with the disappearance of Amelia Arnold, who was last seen on Wednesday.
Wall, of Hadrian's Walk, Stevenage, has been urged to hand himself in to police, who have also issued an appeal for sightings of a Citroen Berlingo van as part of their inquiry.
Detectives have named a missing 19-year-old woman - who police fear has been murdered - as Amelia Arnold.
Police and scene-of-crime specialists are examining a property in Hadrian's Walk in Stevenage.
Witnesses who may have seen suspicious activity at the address between Wednesday and Friday are also being asked to come forward.