 Detainees were also sent in from other parts of Yugoslavia, especially Serbs after major German offensives on briefly liberated territories.Executions of captured prisoners lasted as long as the camp existed.During their heavy “Easter bombing” of Belgrade, Allied aircraft bombed Sajmište on 17 April 1944, killing some 100 inmates and inflicting heavy damage on the camp itself, destroying all the buildings except for the Spasić pavilion and the Central tower..