Streets of London
London's Guardian newspaper has set up an eye-witness blog following today's bombings. Here's part of one entry:
Eventually people smashed through the windows and we were lifted out all walked up the tunnel to the station. There was chaos outside and I started to walk down Euston Road (my face and clothes were black) towards work and all of a sudden there was another huge bang and people started running up the road in the opposite direction to where I was walking and screaming and crying. I now realise this must have been one of the buses exploding.