Three days later, on 11 January, the Islamic Revolutionary Guard Corps said they had shot down the aircraft after mistaking it for a cruise missile.[6] Soon after, vigils held in Iran and intended to pay respect to the victims turned into protests, first at universities in Tehran and then across other Iranian cities.[7] Protests began at the Amirkabir University of Technology, with Iranians chanting "death to the dictator" and calling for Supreme Leader Ali Khamenei to leave the country.[8]