A series of co-ordinated blasts across London killed at least 37 people this morning and injured hundreds. These are some of the stories from passengers who were travelling when the bombs went off.
Joanna Myerson, 29, covered in black soot and shaking with shock, was travelling from West Hampstead on a Circle Line train at 8.56 from Farringdon to Aldgate.
"All of a sudden everything went white and we got thrown to the floor and there was smoke and fire outside. It sounded like an impact almost.
"You could see a sort of electrical fire outside the carriage, on the wall of the tunnel.
"Everybody had to walk through the train and then jump down onto the track. In the carriage I was in everyone was crying but they quickly took control. No one panicked. We wedged open the doors, you couldn’t open the doors. There were no hammers and you couldn’t get any air.
"The front three carriages were where people were injured.
"People were really good, some people just took control, no one panicked, not in the carriages where we were.
"I am really worried about one guy I saw who was walking with a hole in the back of his head."
Mustafa Kurtuldu, 24, from Hackney, said: "The train seemed to almost lift up off the rails. It sounded like an impact. It went white and there were flames outside the train, but they died down quickly."
"I was in the next carriage from where the actual thing happened.
"The train almost like lifted up. After about like 10 minutes some guys came, I think they must have been London underground guys, and they were walking along the track.
"The explosion happened at about five to nine and by the time we got out it was about half past nine."
The two witnesses said that they had broken out of the train, forced the doors open and walked along the darkened track with other passengers past by what they believe were three badly damaged front carriages, one of which had been bent out of shape and blown out.
They said that there were many injured in front carriages which appeared to take the bulk of the impact of the explosion. They had no idea whether it was a bomb or electrical explosion.
"I walked past one person lying on the tracks. I don't know if they were all right," said Mr Kurtuldu.
Aldgate passenger Sarah Reid said: "I was on the train and there was a sudden jolt forward. There was a really hard banging from the carriage next door to us after the explosion - that's where it happened."
Describing events moments before the explosion, she said: "There was a fire beside me. I saw flames outside on the window of my carriage."
She said tearfully that as she was led away down the tracks, "I saw bodies. I think some people may have died."
Arash Kazerouni, from Edmonton, North London, 22, survived the Aldgate blast and said: "There was a loud bang and the train ground to a halt. People started panicking, screaming and crying as smoke came into the carriage. A man told everyone to be calm and we were led to safety along the track."
"Everyone was terrified when it happened. When they led us to safety, I went past the carriage where I think the explosion was. It was the second one from the front. The metal was all blown outwards and there were people inside being helped by paramedics.
In Russell Square, commuters saw a bomb shred a double decker bus.
Belinda Seabrook said she saw parts of the vehicle hurled into the air. "I was on the bus in front and heard an incredible bang, I turned round and half the double decker bus was in the air," she said.
Mrs Seabrook said the bus was travelling from Euston to Russell Square and had been "packed" with people turned away from Tube stops.
"It was a massive explosion and there were papers and half a bus flying through the air, I think it was the number 205," she said.
"There must be a lot of people dead as all the buses were packed, they had been turning people away from the tube stops. "We were about 20 metres away, that was all."
Philippe Palmer, 42, from London was standing at a bus stop near Tavistock Square when he saw the bus explode in front of him.
"The bus was stuck in traffic just the same as any other morning. In a split second, there was a loud noise like a sonic boom and the top of the bus peeled off like a sardine tin."
"About five or six people were thrown out of the top of the bus along with debris. The whole place was covered in smoke and people were staggering out of the bus door. They were very disorientated."
"One minute it was a bus and the next minute we could not take in what had happened."
Simon Corvett, 26, from Oxford, was on the eastbound train leaving Edgware Road Tube station when the explosion happened.
"All of sudden there was this massive huge bang," he said. It was absolutely deafening and all the windows shattered.
"The glass did not actually fall out of the windows, it just cracked. The train came to a grinding halt, everyone fell off their seats."
Mr Corvett, who works in public relations, said the commuter train was absolutely packed. "There were just loads of people screaming and the carriages filled with smoke," he said.
"You couldn’t really breathe and you couldn’t see what was happening. The driver came on the Tannoy and said ‘We have got a problem, don’t panic’."
Mr Corvett, whose face was covered in soot, joined other passengers to force open the train doors with a fire extinguisher. He said the carriage on the other track was destroyed. "You could see the carriage opposite was completely gutted," he added. "There were some people in real trouble."
Gemma Signes, 32, was travelling on the Picadilly Line when an explosion ripped through the train as it left Kings Cross for Russell Square.
"I thought I’d heard an explosion, a loud bang, but no one knew what was happening. We didn’t hear any message from the driver," she said. Ms Signes was on her way to work in Tavistock Square, where a bus later exploded.
"It was pitch black, you couldn’t see anything, and everyone was screaming and panicking. No one knew what to do. There was smoke everywhere - I could hardly breathe. But someone managed to get the doors open because people started pushing out into the tunnel."
"I’ve been watching the TV since I arrived at work and now I’ve realised how many people died I just thank God I’m alive. I was very lucky. It’s terrifying."
Hamish MacDonald was recovering outside Kings Cross after feeling the force of the explosion.
"The blast hit me in the back. People started screaming around me. I couldn’t breathe ... I was in the front of the first carriage. There was a huge massive hole in the carriage. As I went past the second carriage I could see bodies lying all over the floor," he told Reuters.
