Passengers travelling in and out of London are facing delays this morning after rail and underground services were cancelled or delayed.
Some South West Trains to and from Waterloo station were cancelled or diverted because of an electrical supply problem to the level crossings between Barnes and Richmond in south-west London.
No trains running between Barnes and Twickenham in south west London
The London Waterloo circular service departing at 07, 15, 37 and 45 minutes past the hour was cancelled
The service that runs between London Waterloo and Reading is diverted, and would not call at Richmond or Twickenham.
A spokesman for the South West Trains-Network Rail Alliance said the maximum delay passengers would face was just over 20 minutes.