The Jews were taken to the 4th ravine (or reservoir) trenches, forced to undress, and then driven with bayonets to the edge of the trench. They were taken in groups of 5 to the edge of the ravine, placed facing the trench, and then shot with pistols and machineguns by a unit of Sonderkommando 11a (the unit was commanded by SS Hauptsturmfuehrer Eberhard Heinze). The victims fell into the ravine, which was about 15 meters deep. According to some testimonies, the little children were taken away from their mothers, shot to death, and thrown into the ravine. According to other testimonies, the children were murdered by smearing some kind of poison on their lips or suffocated in gas vans. By evening it was all over, and the Germans covered the bodies with a thin layer of earth. According to Soviet testimonies and reports, in these operations about 1,500 Jews - men, women, children, and elderly people -were murdered. Stray dogs dug up the graves and dragged away the bodies. In the spring water flowing from the ravine washed away the earth and the half-decomposed bodies were revealed. The Germans blew up part of the ravine to cover the bodies.