Four people have been treated for smoke inhalation after a fire on the Tube this morning, caused by an electrical fault under a carriage.
Oxford Circus station was evacuated and closed in a fire alert earlier today after smoke was seen on a Tube train.
London Ambulance Service said it treated four patients at the scene for smoke inhalation, with two taken to hospital "as a precaution".
Nigel Holness, London Underground’s director of network operations said: "At around 8:50am our staff were alerted to reports of smoke on a Bakerloo train approaching Oxford Circus. Our staff immediately contacted the emergency services, who quickly attended, and ensured customers left the train and exited the station.
"The cause of the smoke was an electrical fault under one of the carriages, which resulted in a small fire that was quickly extinguished. Understandably this was a distressing incident for our customers, for which I give my sincere apologies."
Holness added: "A comprehensive investigation into how this incident could have occurred is now underway. Our Sarah Hope Line, which is set up to help those affected by incidents on the transport network, is also available to offer support."
The Bakerloo, Central and Victoria lines were suspended but have now resumed with delays.
Witnesses at the station reported seeing smoke on a Tube train.
Fire on the bakerloo line Oxford circus today - great Friday start pic.twitter.com/SVtZxWClDi— Joe Bunting (@jnzbunting) August 11, 2017