Bloody Sunday, or the Bogside Massacre, occurred on 30 January 1972 when British soldiers shot 26 unarmed civilians during a protest march in the Bogside area of Derry, Northern Ireland. Thirteen men were killed outright, and the death of another man four months later has been attributed to his gunshot injuries. Many of the victims were shot while fleeing from the soldiers and some were shot while trying to help the wounded. All of those shot were Catholics. The march had been organised by the Northern Ireland Civil Rights Association (NICRA) to protest against internment without trial. The soldiers were from the 1st Battalion of the Parachute Regiment, the same battalion implicated in the Ballymurphy massacre several months earlier.