Two cars loaded with gasoline and nails found abandoned in London England . September 1989 : Eleven people die and 22 are wounded when an IRA bomb explodes at a Royal Marine music school in Deal , southern England . 52 people killed on July 7 , 1992 after bombs exploded on a bus , London . British capital wracked by attacks by the IRA for years .
Two cars loaded with gasoline and nails found abandoned in London England . 52 people killed on July 7 , 1992 after bombs exploded on a bus , London . British capital wracked by attacks by the IRA for years .