One of Britain's largest railway operators has urged commuters not to travel as it continues to deal with a major signalling failure across its lines.
Services are severely disrupted across the South Western Rail network due to a failure at London Waterloo station.
Engineers are on site to restore the platforms, with the hope that some services can resume later in the day.
The company has apologised and is asking customers to check the South Western Railway website and social media for updates.
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|People in London Waterloo station, London
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|South Western Railway has confirmed the delay is ongoing
A spokesman said: "Due to a major signalling failure at London Waterloo, please do not travel on our services this morning.
"The failure of the equipment that routes trains in and out of the station means we cannot use Platforms 1 to 14 at London Waterloo at this time, significantly limiting capacity."
Tickets are being accepted on CrossCountry services between Reading and Bournemouth, Southern services between London Victoria, Portsmouth Harbour and Southampton Central, and Great Western Railway services between Salisbury, Westbury and Weymouth.
SWR also confirmed that any unused tickets valid for today will be valid for travel tomorrow, Tuesday, July 22.
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|An information display board in London Waterloo station
Earlier this year, SWR became the first company to be re-nationalised by the Labour Government, with some trains rebranded to "Great British Railways."
Transport secretary Heidi Alexander said: "Today is a watershed moment in our work to return the railways to the service of passengers.
"Trains from Waterloo to Weymouth, Bournemouth and Exeter will be run by the public, for the public. But I know that most users of the railway don’t spend much time thinking about who runs the trains, they just want them to work.
"That’s why operators will have to meet rigorous performance standards and earn the right to be called Great British Railways.
"We have a generational opportunity to restore national pride in our railways and I will not waste it."
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