Shelagh Fogarty is Leading Britain's Conversation.
15 August 2017, 07:23
A train has partially derailed at London Waterloo, causing travel chaos.
South West Trains services were delayed by about 40 minutes between Clapham Junction and Waterloo because of a track problem this morning.
A South West train is believed to have hit a freight train and left the rails on one side.
Eyewitness Vince Gannon tweeted: "Train leaving Waterloo appears to have struck a works train. Loads of Police and paramedics about. Hopefully no one hurt."
The London Ambulance Service said they treated three passengers, but none needed to go to hospital.
#DisruptionSWT Due to a signal failure and an operational incident we advise to avoid Waterloo. Disruption expected until end of the day.— South West Trains (@SW_Trains) August 15, 2017
Commuters are being advised to avoid London Waterloo station for the rest of the day.
A Network Rail statement said: "South West Trains and Network Rail are advising passengers not to travel following a low-speed, partial derailment at London Waterloo this morning.
"There are no injuries to passengers of staff and a very limited service is running to and from Waterloo, which is expected for the rest of today.
"The incident happened as the train was pulling away from its platform at Waterloo at 5:40am. An investigation to establish the cause of the incident is underway."
London Waterloo is currently undergoing a major upgrade, with platforms 1-10 closed due to the building work until 28th August.