PASSENGERS are being advised not to travel by rail unless their journey is vital after a burst water main caused a landslide near South Croydon station.
Hundreds of commuters queued in the sweltering heat for more than an hour as they wait for replacement buses at Three Bridges train station.
Services at Horsham station and surrounding stations in West Sussex are also being hit by the delays.
Paul Wyborn, area manager of Southern Railway, said: “There has been a burst water main and land slide in the South Croydon area. We would like to say to people do not travel unless vital. We are absolutely manic.”
All lines are blocked between East Croydon and South Croydon so there are no trains running southbound from East Croydon at present.
However, northbound services are running from East Croydon.
A shuttle train service is operating between Brighton and Gatwick Airport and between Sanderstead and Oxted.
Southern Rail are attempting to arrange rail replacement buses between East Croydon and Three Bridges, between Oxted and East Croydon, between Redhill and Oxted, between Uckfield and Oxted, between Purley and East Croydon and between Crowborough and Tunbridge Wells (for connection to Southeastern services).
Passengers who need to travel south of East Croydon from London are advised not to travel from London Victoria, but to travel on South West Trains from London Waterloo via Havant for West Sussex stations, and on Southeastern trains from Charing Cross via Hastings for East Sussex stations.
Passengers for London from south of East Croydon are advised to make the same connections in reverse.
London Buses, Metrobus, London Underground, South West Trains, Southeastern, London Midland, First Great Western, Croydon Tramlink and First Capital Connect services are all accepting Southern tickets on all reasonable routes.
Passengers can keep informed of developments by checking the Live Running Information page on their website www.southernrailway.com.