Kings Cross station was evacuated because of overcrowding during rush hour this morning, with Tube lines not stopping at the station.
British Transport Police confirmed the station was closed because of problems on the Hammersmith & City Line today. Although it has since reopened, BTP warned commuters to allow "extra time" for their journey as the closure's knock-on effects filter through.
It has been a bruising morning all round, as a signal failure at Baker Street, Aldgate East and Stepney Green affected Circle, District, Metropolitan and Hammersmith & City Lines during rush hour.
The Circle Line was suspended entirely while the H&C Line between Edgware Road and Barking was closed as Transport for London attempted to resolve the issue.
The Metropolitan Line was down between Baker Street and Aldgate, and there are severe delays on the District Line between Barking and Earl's Court. TfL reported that it was still down at 10:30am.
And there was no service between Tower Hill and Whitechapel eastbound because of the signal failures at the eastern end of the network.
Update: Severe delays on @districtline while we fix signal failures at Aldgate East and Stepney Green.— TfL Travel Alerts (@TfLTravelAlerts) October 7, 2015
No service between Edgware Road and Barking only, while we fix a signal failure at Baker Street. Severe on the rest of the line.— H&C line (@hamandcityline) October 7, 2015
Update: No service between Tower Hill and Whitechapel eastbound.Severe delays the rest of the line. Updates to follow— District line (@districtline) October 7, 2015
Severe delays have also been reported between Clapham Junction and Surrey Quays because of an earlier fault with the track.
Severe delays between Clapham Junction and Surrey Quays due to fault with the track earlier @LDNOverground— TfL Travel Alerts (@TfLTravelAlerts) October 7, 2015
Unsurprisingly, commuters are not best pleased.
More to follow...