Passengers travelling on the London Overground are being warned that there is currently no service between South Acton and Richmond Stations.
This is because of a faulty track which has also resulted in there being no service between Shepherd's Bush and Clapham Junction.
The faulty track is also causing severe delays between Highbury & Islington and Gospel Oak.
As a result -trains will also not be stopping at Caledonian Road & Barnsbury, Camden Road or Kentish Town West.
Passengers should be advised that the London Underground and London Buses will accept tickets and there is a good service along the rest of the London Overground routes.
No estimate was given as to how long the disruption would last - but as of 1.20pm disruption is ongoing.
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