Protests in Milan were primarily peaceful with about 30,000 demonstrators attending according to organizers and denounced the Expo 2015 meeting. Some protests were violent with about 500 individuals equipped with motorcycle helmets and batons gathered near Piazza XXIV Maggio far from the Expo 15 convention. Violent protesters clashed with police, torched several vehicles and a few business, broke windows of shops and threw homemade explosives at some businesses.