Parsons Green Tube passenger: I thought my life was over after the blast
A passenger who saw the explosion on a Tube train in west London on Friday morning says she thought she was going to die.
The blast happened in rush hour on the District line at Parsons Green and is being treated as a terrorist incident. Twenty-two people are being treated in hospital, mostly for burn injuries. Hundreds of detectives are looking for the person who placed the device. Anna Gorniak was in the same Tube carriage as the explosion. She's told Newsbeat: "I heard a noise and I thought that actually somebody's having a fight perhaps and then I actually saw people running and screaming. "I could see a fireball filling the carriage and coming our way. At that moment, I started to run. "I guess my thought was, 'OK, is that it or is somebody after us? Is somebody going to come with a gun or with a knife.' "Then we realised that it was over, so we were evacuated shortly after." Anna, who works for a London hospitality company, says she felt completely powerless after the blast. "My legs couldn't even get me out of the carriage. In my mind I was praying, I probably thought for a second, 'That's it, my life is over.' "I'm very thankful to God that I'm alive." PM Theresa May has condemned the attack, which she said had "intended to cause significant harm". She said the UK's terror threat level would remain at severe - the second highest - but would be under review. Assistant Metropolitan Police Commissioner Mark Rowley asked the public to remain "vigilant" and said they should "not be alarmed". He said: "Londoners can expect to see an enhanced police presence, particularly across the transport system across the day." Find us on Instagram at BBCNewsbeat and follow us on Snapchat, search for bbc_newsbeat