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.
More top news
Darren February broke into Cowell's home as he and his family slept and his security guard used the toilet.
Pilots taking off or landing at the west London airport were targeted 151 times in 2016.
All private hire drivers must sit the test at a cost to the driver of £180 unless they can prove they have a qualification in English GCSE.