Ypatingasis būrys (Special Squad) or Special SD and German Security Police Squad (Lithuanian: Vokiečių Saugumo policijos ir SD ypatingasis būrys, Polish: Specjalny Oddział SD i Niemieckiej Policji Bezpieczeństwa, also colloquially strzelcy ponarscy ("Ponary riflemen" in Polish)[1][2] (1941–1944) was a Lithuanian killing squad also called the "Lithuanian equivalent of Sonderkommando",[3] operating in the Vilnius Region. The unit, primarily composed of Lithuanian volunteers,[4] was formed by the German occupational government[5] and was subordinate to Einsatzkommando 9 and later to Sicherheitsdienst (SD) and Sicherheitspolizei (Sipo).[6]