LATEST: Islamic State has claimed responsibility for the attack.
Eyewitnesses have spoken of the panic which ensued after an explosion on a Tube carriage on Friday morning.
Some 29 people were injured in the incident, which took place at 8.20am at Parsons Green station, on the London Underground's District Line.
Emma Steventon, 27, who lives in Parsons Green told HuffPost UK she heard "lots of screaming" and was told to run but didn't know why.
She said: "You just run when people say that."