On Tuesday evening 18 November 1975 an Irish Republican Army (IRA) unit nicknamed the Balcombe Street Gang, without warning, threw a bomb into Walton's Restaurant in Walton Street, Knightsbridge, London, killing two people and injuring almost two dozen others.
In total the unit carried out around 40 bomb and gun attacks on mainland Britain between October 1974 - December 1975.
[7][8][9] After the 1975 IRA–British Army truce began to break, the IRA's Balcombe Street ASU stepped up its bombing and shooting campaign on mainland Britain.
At approximately 21:50 in the evening, an explosive device was thrown by IRA Volunteers through the window of the restaurant.
[13] According to Dr. Laurence Martin, the consultant in charge of the casualty department in St. Stephen's Hospital, four of those injured required emergency operations.