On Sabbath, September 20, 1941, the Lithuanian police assembled the Jews of Niemenczyn in the building of the beth midrash (synagogue). The Jews were told that they were going to be moved to the Vilna (Vilnius) Ghetto, and ordered to hand over all their money and valuables. At 10 AM, the assembled Jews were driven out of the beth midrash and escorted along the Vilnius road, southwest of the town. However, after walking some three kilometers, the column was turned northwest, into the forest, and led to a ditch that had been dug beforehand. There, they were shot by the Lithuanian Special Squad (Ypatingasis Būrys), which had come over from Vilnius for this purpose, and by the local auxiliary police. According to a German report, 403 Jews were murdered at this site, including 128 men, 186 women, and ninety-nine children.

More information: Yad Vashem