A broken down train has brought a busy section of the London Overground to a standstill on Thursday evening.
Trains are unable to run between Richmond and Camden Road while Network Rail fix a fault freight train at Willesden Junction.
Services between Stratford and Camden Road and between Willesden Junction and Clapham Junction have been hit by severe delays due to the issue.National Rail warned disruption is expected until 11pm.
Earlier on Thursday there were severe delays on the Circle and District lines following a casualty on the track.
The Circle Line was completely suspended on Thursday afternoon as emergency services responded to the incident, but had reopened with delays by around 2.20pm.
A spokesperson for the British Transport Police said: “Officers were called to Gloucester Road underground station at around 11.13am today (6 June) following reports of a casualty on the tracks. Paramedics also attended, and a person was taken to hospital with life-changing injuries.”
It comes after a woman was rushed to hospital following a collision involving a car and a lorry on Chalk Farm Road.
Meanwhile, Elizabeth line commuters travelling through east London are facing disruption for the whole of Thursday.