A mass grave dug by Jewish forced laborers for the bodies of individuals murdered by the NKVD in Lvov prisons. The NKVD (Soviet secret police) murdered thousands of Ukrainian nationalists, as well as some Jews and Poles, before retreating from the Nazi invasion. The Germans and their Ukrainian collaborators then used the massacre as a pretext for anti-Jewish pogroms, claiming that the Jews had helped the secret police. Lvov, Poland, July 3, 1941.
National Archives and Records Administration, College Park, Md.