Overhead electric wire problems between London Euston and Watford Junction means all lines are blocked. As a result of this, trains may be cancelled or delayed by up to 60 minutes.
This is expected until 09:00.
A fault with the signalling system between Oxford and Moreton-In-Marsh means all lines are disrupted.
The emergency services are dealing with an incident at Sutton which is causing disruption to trains running through this station. As a result, trains may be delayed.
This is expected until the end of the day.
A fault with the signalling system between Staines and Winsor & Eton Riverside is causing disruption to journeys between these stations.
A local operational issue between St Albans Abbey and Watford Junction means all lines are blocked. Trains running between these stations will be cancelled.
Disruption is expected until 11:30.
A points failure at Portsmouth Harbour means some lines are currently blocked at this station.
Following a fault with the signalling system at Airdrie lines have reopened.
A fault with the signalling system between Birmingham New Street and Northampton means lines are blocked. Trains running between these stations may be delayed or cancelled.
Disruption is expected until 19:30.
A safety inspection on a train at Glynde means some lines are blocked. Trains running between these stations may be delayed by up to 20 minutes or cancelled.
Disruption is expected until 17:00.
A broken down train between Barton-on-Humber and Cleethorpes means lines are blocked. Trains running between these stations may be delayed by up to 90 minutes or cancelled.
Disruption is expected until 19:00.