tank, which destroyed the camp's watchtowers and bunkers. The German defence eventually collapsed and SS personnel hid in the Pawiak prison walls. Battalion Zośka's losses were rather small — one person was killed in action, another died of wounds and one person was wounded in action but survived; German losses are unknown but were presumably larger. The Home Army thus liberated 348 Jews, among which 24 were women. Those released were mostly Hungarian (200-250 people) and Greek Jews, with some Czechoslovakians and Dutch Jews, who knew very little Polish. It is known that only 89 people among the liberated had been Polish citizens, and historians have only been able to identify 73 prisoners by name. The Warsaw concentration camp was the only German concentration camp in Poland that was not liberated by main Allied troops, but by resistance fighters. The vast majority of released Jewish prisoners swiftly took part in the uprising, which Gabriel Finder attributes to an informal political group, which he says prevented the camp's inhabitants from moral deterioration. Some of them were fighting along with other soldiers, but most, given their lack of combat experience, were helping with transport and provisioning issues, rescuing those under ruins as well as extinguishing fires. Morale among Jewish fighters was hurt by displays of antisemitism, with several former Jewish prisoners in combat units killed by antisemitic Poles, in particular those associated with the National Armed Forces. After the defeat of the uprising, the survivors fled or hid in bunkers. There were as few as 200 Jewish survivors (former prisoners as well as Jews who were hiding on the "Aryan" side) on 17 January 1945, on which date the Red Army . Postwar After the retreat of the German forces from Warsaw, the former Nazi camp was first operated by the Soviet NKVD for German prisoners of war, as well as for the soldiers of the Home Army loyal to the Polish government-in-exile and other persons suspected of opposing the Soviet occupation. As in the case of the German period, the prisoners were held in poor conditions and it is probable that numerous executions were taking place in the camp. The camp was then turned over to the Polish Ministry of Public Security (MBP) in mid-1945, when it became known as the Central Labour Camp for Warsaw's Reconstruction () and whose prisoners were used for construction and demolition works in the capital.