1974: Bomb blast at the Tower of London
An explosion in the Tower of London has left one person dead and 41 injured.
A bomb ripped through the Mortar Room in the White Tower at 1430 BST.
The small basement exhibition room was packed with tourists from the UK and abroad who took the force of the blast.
Many people suffered badly damaged and lost limbs and severe facial injuries.
At least two of the victims were children and are being treated in St Bartholomew's Hospital.
Scotland Yard Bomb Squad Chief Robert Huntley said: "It was an indiscriminate attack designed to create as much trouble and injury as possible."