On September 21, 1941, the Lithuanian police drove the Jews of Nowa Wilejka to the village of Wieluciany, some four kilometers southeast of the town, and placed them in barns and other agricultural structures of the local estate. Over the following days, the police brought in Jews from the surrounding villages and settlements – such as Turgiele, Andreliszki, Kiena, Miedniki, Szumsk, Rukojnie, Krzyżanowo, and others – as well as the Jewish laborers from the Kiena peateries. Some of the Jewish men were sent away to dig a pit. When the pit was ready, on September 22 (or 24, according to another source), all the Jews assembled in Wieluciany were shot by a squad of SS Einsatzkommando 3 and by Lithuanian collaborators.
According to the report compiled by Einsatzkommando 3 (the so-called "Jäger Report"), 1,159 Jews (including 468 men, 495 women, and 196 children) were killed on September 22, 1941. In June 1944, a month before the Soviet offensive on Lithuania, the Nazis brought some Soviet POWs to Wieluciany and ordered them to liquidate the bodies in the mass graves. This was part of the so-called "Aktion 1005," an operation aimed at destroying all evidence of the Nazi extermination of the Jews, which was carried out from mid-1942 to the end of 1944.

More information: Yad Vashem