To mark the 10 year anniversary of the London 7/7 terrorist attacks, HuffPost UK is running Beyond The Bombings, a special series of interviews, blogs, in-depth features and exclusive research reflecting on how Britain has changed since.
A Metropolitan Police Officer who was one of the first to arrive at the scene of the 7/7 Edgware Road station terror attack has recalled the terrible aftermath of the bombing.
It's taken the 34-year-old ten years to speak in detail about his experience of the disaster, which saw six innocent people killed and 163 injured.
Describing the tragic scenes of the day, PC Tom Woods said: "It's almost like the whole world ended at that point".
On July 7th 2005, the attacks saw four suicide bombers strike central London, in total, killing 52 people and injuring more than 770.
The bombs went off to co-ordinate with the rush-hour traffic and hit underground trains near Edgware Road and Liverpool Street stations.
The attack also hit a train traveling between King's Cross and Russell Square and a double-decker bus was hit in Tavistock Square.
Woods explained: "I got out of my car - I had my first aid kit as you do at these things and I ran into the station to see what was going on.
"There was quite a lot of panic going on and everyone that was coming out said there had been an explosion in the tunnels and that people had been injured."
The father-of-two recalled giving first aid to a man with severe burns, carrying injured people from the tunnel and searching through the wreckage for other possible bombs.
PC Woods, who is now with the Met Intelligence Unit, added: "You are walking through an empty train which starts off by being exactly as it was when it left the station that morning.
“Then by the time you stop walking you are looking through a window at the end which is black. It is almost like the world (and) the whole train ended at that point. Beyond that was the blast and everybody who had been seriously injured.
“When we came out of the train on one side there was somebody (who had been killed) there right by where we climbed out, somebody we had to step around and that really stuck with me."
MORE BEYOND THE BOMBINGS:
- EXCLUSIVE: More Than Half Of Britons Now See Muslims As A Threat
- Remembering Each Victim Of the 7/7 Bombings
- Gill Hicks, Inspirational 7/7 Bombings Survivor, Reveals Why She'll Never Give Up Fighting Extremism
- The Ex-Guardian Journalist Who Accidentally Fuelled 7/7 Conspiracy Theories
- Grief And Kindness In 'A Song For Jenny' On BBC