Flooding at Mitcham Junction station has caused chaos for commuters on Friday morning.

Southern and Thameslink services which usually run via Carshalton & Mitcham Junction will be diverted away from the area, revised to call at different stations, or cancelled.

Carshalton, Hackbridge, Mitcham Junction and Mitcham Eastfields are not currently being served by trains.

A statement posted on the National Rail website said: "We recommend that if you normally use these stations, you plan to use an alternative route and do not head to the station (with the exception of Mitcham Junction, for Tramlink connections only).

"Trains which usually run between Dorking/Epsom and London Victoria (via Carshalton) are likely to be cancelled entirely.

"Trains which run between Horsham and London Victoria (via Sutton & Carshalton) will be diverted, not calling at the usual stations between Sutton and Clapham Junction, and are likely to be delayed.

"Thameslink services via Wimbledon and Sutton will be diverted on the section of their route between Sutton and Streatham/Tulse Hill."

On top of that a fault with the signalling system at Clapham Junction is causing disruption to trains between Victoria station and Balham.

Trains may be delayed or cancelled until at least midday as a result.

"Due to earlier flooding, a fault with the signalling system has occurred at Clapham Junction," the National Rail message added.

"For safety reasons, train drivers are being instructed to run at reduced speeds.

"This is causing significant delays to trains running through this area."