A SURVIVOR of Thursday's terrorist attacks in London has spoken of the moment one of the bombs exploded just metres away from her.

Fiona Trueman, 26, was travelling on the Piccadilly Line between King's Cross and Russell Square when the most devastating of the bombs went off in the carriage next to hers, killing at least 21 people.

She was in the second carriage of the train, standing next to the window that separated it from the first, and was showered with glass.

As the air around her filled with thick grey smoke and screams started coming from the first carriage, Fiona closed her eyes and thought of her family.

She said: "We were down there for 25 minutes with no news. We all thought we were going to die."

Fiona, who lives in St Albans, drives to her job as a marketing manager for Sky Television every day. But on Thursday morning she had taken the train into London for a training course, getting onto the Tube at King's Cross. She waited for the second train because the first was full, and then chose the second carriage over the first.

The bomb exploded three minutes after the train left King's Cross. Fiona said: "It wasn't a bang, it was a very dull sound, like a thud.

"The lights went out and the windows blew in, and we all flew back and then forward again. The guy standing in front of me got glass in his neck, and it all went into my hair and my clothes.

"I couldn't breathe everyone was coughing. Then we started hearing the screams from next door.

"I think we all realised it was a bomb but no-one said it out loud. I kept bursting into tears, I couldn't even phone my mum to tell her I loved her.

"The worst thought was that even though the carriage was packed with people, each of us would have been dying alone."

After an agonising wait, passengers in the third carriage shouted that help was on the way. As Fiona walked through the tunnel, the seriously injured, some covered in blood, were rushed past her.

She said: "When we got onto the platform I just broke down it was such a relief."

Fiona was taken for treatment at the Royal London hospital, and then managed to get a taxi home.

She said: "Everyone has been so lovely I've had so many messages of support from people.

"At the moment I can't ever see myself getting on the Tube again but I've got a friend's birthday party in Covent Garden this weekend and I'm determined to go."

Later this month Fiona is going on holiday to Australia. She said: "I'm going to do everything and see as much as I can. I know I'm so lucky to be here.

"My dad says God must have been watching over me."