The Iași pogrom (Romanian pronunciation: [ˈjaʃʲ] , sometimes anglicized as Jassy) was a series of pogroms launched by governmental forces under Marshal and Leader Ion Antonescu in the Romanian city of Iași against its Jewish community, which lasted from 28 June to 30 June 1941. According to Romanian authorities, over 13,266 people, or one third of the Jewish population, were massacred in the pogrom itself or in its aftermath, and many were deported. It was one of the worst pogroms during World War II.