The Dinamo Zagreb–Red Star Belgrade riot was a football riot which took place on 13 May 1990 at Maksimir Stadium in Zagreb, Croatia, then part of Yugoslavia, between the Bad Blue Boys (supporters of Dinamo Zagreb) and the Delije (supporters of Red Star Belgrade). The incident took place just weeks after Croatia's first multi-party elections in almost fifty years in which the parties favouring Croatian independence had won the majority of votes. The riot resulted in over sixty people wounded, including some stabbed, shot or poisoned by tear gas.