7 July 2005 London bombings
Islamist suicide terrorist attacks
On 7 July 2005, Islamist terrorists carried out four coordinated suicide bombings targeting commuters travelling on London's public transport during the morning rush hour. The attacks are sometimes known as the 7/7 bombings or simply 7/7. Three terrorists separately detonated three homemade bombs in quick succession aboard London Underground trains in Inner London.
From Wikipedia, under CC BY-SA. More on occurri.