The City of London Police has released crime scene photos from their archive on the 25th anniversary of the Bishopsgate bomb.
The pictures, which have not been made public before show the devastation caused after the IRA truck bomb exploded.
Despite a warning being sent beforehand, one person was killed and 44 were injured by the blast on the 24th of April 1993.
It's estimated the bomb caused £350 million worth of damage.
For PC Joanne Richardson the effects of the bomb stayed with her for years. Standing on one of the outermost cordons, Richardson heard the bomb go off before glass rained down, injuring her in the process.
Following the attack, the City of London Police installed a ‘ring of steel’ in July 1993.
Most routes into the City were closed or made exit-only, and the remaining routes had checkpoints manned by police officers 24 hours a day.
There were CCTV cameras at each entry point - one to read the vehicle registration plate and another to monitor the driver and passenger – and pursuit police cars and motorcycles were stationed nearby to follow any suspicious vehicles.