A first-hand blog account of terror:
Travelling just past Edgware Station the train entered a tunnel. We shook like any usual tube train as it rattled down the tracks. It was then I heard a loud bang.
The train left the tracks and started to rumble down the tunnel. It was incapable of stopping and just rolled on. A series of explosions followed as if tube electric motor after motor was exploding. Each explosion shook the train in the air and seems to make it land at a lower point.
I fell to the ground like most people, scrunched up in a ball in minimize injury. At this point I wondered if the train would ever stop, I thought “please make it stop”, but it kept going. In the end I just wished that it didn’t hit something and crush. It didn’t.
When the train came to a standstill people were screaming, but mainly due to panic as the carriage was rapidly filling with smoke and the smell of burning motors was giving clear clues of fire.
As little as 5 seconds later we were unable to see and had all hit the ground for the precious air that remaining. We were all literally choking to death.
The carriage however was pretty sealed; no window could open, no door would slide and no hammers seemed to exist to grant exit. If there were instructions on how to act then they were impossible to see in the thick acrid black smoke.
In the end I opted to do something about the problem and began shouting to find out in which direction the fires were emanating from. I then tested with the inter-carriage door to see if venting the smoke caused fire to spread. It didn’t so I held the door open trying to clear the carriage and look for escape routes.
The train was packed and so there was no escape to the other carriages. Through the gap between the carriages however I saw an escape route and it calmed me from panic; if things got bad I could see an exit along the tunnel wall.
The fire concerned me and the acrid smoke never seems to fully dissipate. I calmed passengers playing down the issue as a bad tube network and a network derailment. Naturally people were in a mixture of states from quiet to abject panic in all its colours.
People could be heard screaming from all around; people were trapped, yet no-one could move and do anything.
After an eternity a guard moved through the carriages and asked everyone to move in the opposite direction. No one however moved, I think they were all in shock.
May the murdered rest in peace.