The Sikrikim or Sikarikim (Hebrew: סיקריקים) or Sicarii is a radical group of ultra-Orthodox Jews based mainly in the Israeli ultra-orthodox neighborhoods Meah Shearim in Jerusalem and in Ramat Beit Shemesh. The anti-Zionist group is thought to have roughly 100 activist members. The Sikrikim gained international attention for acts of violence they committed against Orthodox Jewish institutions and individuals who would not comply with their demands. The name "Sikrikim" comes from "sicarii", a group of Jewish Zealots who attacked Romans and Jewish sympathizers of the Rome during the Roman occupation of Judea using concealed daggers, sicae in Latin.