Services to and from London King's Cross are being disrupted due to a signalling fault at Darlington, with some lines currently blocked.
Affected operators include LNER and Lumo, with routes between London King’s Cross and Aberdeen, Edinburgh and Newcastle impacted.
Trains may be delayed by up to 30 minutes or cancelled.
Follow the latest updates below...
Live updates
Reduced service on the Woolwich Ferry
Until early April, a reduced one-boat service is in place due to essential maintenance.
During this period, the final crossing departs at 9:40pm from the South Terminal and 10pm from the North Terminal.
Delays on the A40
Eastbound traffic is queueing back to Heathstan Road.
Northbound traffic on Wood Lane is also building, with queues reaching Wood Crescent, while on Holland Park Avenue, eastbound queues stretch from Notting Hill Gate to Holland Park Roundabout.
Delays on Streatham Hill due to TfL Major Works
Delays are affecting traffic on [A23] Streatham Hill in both directions between [A205] Christchurch Road and Leigham Court Road due to restrictions for TfL major works.
Friday evening engineering works affect Paddington–Didcot services
Engineering work between Tilehurst and Didcot Parkway on Friday evening will close some lines.
As a result, the 11:37pm service from London Paddington to Didcot Parkway will not stop at Pangbourne.
Replacement buses will operate between Tilehurst and Pangbourne, connecting with train services.
Barking Riverside engineering works cancelled
Planned engineering work in the Barking Riverside area has been cancelled and services are now running normally on this route.
Good service continues across the London Underground
The London Underground is not reporting any major delays.
Reduced service on the Woolwich Ferry
Until early April, a reduced one-boat service is in place due to essential maintenance.
During this period, the final crossing departs at 9:40pm from the South Terminal and 10pm from the North Terminal.
Delays on the A206
There are delays affecting the north to south crossing at Ferry Approach at the junction of A206.
King's Cross disruption extended until 11:30am
The disruption to LNER and Lumo services to and from King’s Cross has now been extended until 11:30am.
Good service across all lines
There is a good service across all lines on the London Underground.