Lines have now reopened following a problem which was under investigation at London Blackfriars.
Trains are now able to run as normal following a broken down train between Chesterfield and Derby.
A fault with the signalling system between Shenfield and Ingatestone is resulting in disruption to trains between these stations.
Disruption caused by a fault on a train between Hampton Park and Cooden Beach has now ended.
Trains are now running normally following an earlier fault on a train between Balham and London Victoria.
Disruption caused by a road vehicle colliding with a bridge near Catford has now ended.
Trains are now running normally following overrunning engineering works between London Victoria and Balham.
Trains are now running normally following an earlier fault on a train at Maze Hill.
Trains are now running normally following an earlier broken down train at Inverurie.
Trains are now running normally through London Blackfriars following a problem under investigation at the station.