The concentration camp „Crveni krst“ or Red Cross in english was one of the camps established throughout Serbia by the German occupation forces in 1941. The camp held patriots regardless of their political orientation, as well as a large number of Jews and Roma. It is also known as the first camp at that time from which a great escape of 147 inmates was organized on February 12, 1942. 

105 of them succeeded, and 42 left their lives on the camp wires. After that, as a sign of revenge, about 10,000 people were shot on the nearby Bubanj hill, and the torture continued until September 14, 1944, when the Germans left the camp. Niš was liberated on October 14, 1944.