South West Trains say a problem at a level crossing between Barnes and Richmond means all lines will be blocked and services disrupted until around 6.30pm.
Apocalyptic scenes at London Waterloo.. No trains at all. Apparently delays are expected for the rest of the day/night. #southwesttrains
This train is actually too crowded to sit on the floor. Two hours of this is a physical endurance test. South West Trains are awful.
There are still major delays on South West Trains tonight after a signalling problem this lunchtime.
Mainline services between London and the south coast are being delayed by up to an hour. Some suburban services have been cancelled entirely.
A statement on the company's website says:
– South West Trains
"Owing to an earlier major signalling problem in the Clapham Area, lines to/from Waterloo are open again but services across the entire South West Trains network may be subject to disruption, owing to the amount of time the lines were previously closed for.
"Disruption is expected until end of service 12/10.......We are sorry for the inconvenience caused to your journey today. "
Disruption on South West Trains between London Waterloo and Barnes, and between London Waterloo and Wimbledon due to signalling problem.
All trains to and from Waterloo are at a stand-still at the moment.
A3 Clapham Common North Side Eastbound closed, queueing traffic due to accident between A205 The Avenue and A3216 Cedars Road. Also affecting A3216 Cedars Road both ways between A3 Clapham Common North Side and A3036 Lavender Hill
Residents in Clapham say they're fustrated that an illegal travellers' site has been created on the common.
They awoke to find that several caravans had been parked in the middle of the iconic green overnight - without warning.
Conservative Lambeth Councillor Julia Memery told Liz Wickham that it's a civil case and they expect an eviction by Monday at the latest, if the travellers have not moved on voluntarily by then.
Speaking to our reporter, Liz Wickham, the travellers say they're Irish and have nowhere else to go.
The six caravans are parked on football pitches, preventing some of the regular Saturday morning matches from being played.
A fire at an electrical substation caused lights around Clapham Common to go out briefly last night. Residents heard a bang and streetlights went out for a few seconds. The local cinema also lost power to its projectors. There were no casualties and the fire was soon brought under control.