Cossiga was head of the government during the Bologna massacre, a terrorist bombing of the Bologna Central Station on the morning of 2 August 1980, which killed 85 people and wounded more than 200. The attack was attributed to the neo-fascist terrorist organization "Nuclei Armati Rivoluzionari" (Armed Revolutionary Nucleus), which always denied any involvement; other theories have been proposed, especially in correlation with the strategy of tension.