The Bologna massacre occurred in Bologna, Italy on 2 August 1980 during the "Years of Lead". That morning, a member of the neo-fascist NAR group left a suitcase containing a time-bomb in an air-conditioned waiting room at the Central Station in Bologna. Because air conditioning was uncommon in Italy at the time, and because it was summer, the room was crammed full of people. At 10:25 AM, the bomb exploded, destroying most of the main building; the roof of the waiting room collapsed on the passengers, greatly increasing the death toll. The bombing killed 85 people and injured over 200 in the deadliest atrocity in Italy since the end of World War II. NAR leader Valerio Fioravanti repeatedly denied that his group was responsible for the attack, and it was theorized that members of the Italian secret service and Propaganda Due were involved with the attack. It was later revealed that the NAR phone call claiming responsibility for the attack had actually originated from the Florence office of SISMI, and General Pietro Musumeci (a member of P2) had attempted to bomb another Bologna train using the same type of explosives used to bomb the station, and he sought to incriminate Roberto Fiore and Gabriele Adinolfi in the attack.