The Nikolaev Massacre was a massacre which resulted in the deaths of 35,782 Soviet citizens, most of whom were Jews, during World War II, on September 16–30, 1941. It took place in and around the Ukrainian city of Mykolaiv (also known by its Russian name, Nikolaev) and the neighboring city of Kherson in (current) southern Ukraine (then Soviet Union). The massacre was carried out by German troops of Einsatzgruppe D under the command of Otto Ohlendorf, who was later convicted at the Einsatzgruppen trial of the Nuremberg Trials and was sentenced to death by hanging. The killings were committed by many of the same troops who carried out the massacre at Babi Yar, and the victims were counted and described in an Einsatzgruppen document dated October 2, 1941 as "Jews and Communists". This document was entered into evidence at the Nuremberg Trials as NO-3137.