Delays are expected on the London Overground between West Croydon/Crystal Palace and Highbury & Islington because of a signalling problem at New Cross Gate station.

The signalling problem has been resolved but there will still be delays until 8.30am.

In a Tweet, National Rail said customers can use their tickets on Greater Anglia, Great Northern, Southeastern, Southern, TfL Rail and Thameslink services to get to their destinations.