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 Sonderkommando 11a and Einsatzkommando 12, which were subunits of Einsatzgruppe D under the command of Otto Ohlendorf.
[1][2][3] 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".
[4] Nine of the perpetrators were tried by a Soviet military court in January 1946.
[2][5] Ohlendorf was prosecuted by an American military court in the Einsatzgruppen trial and sentenced to death.