On May 3, the task of guarding the camp was handed to a police unit from Vienna. On May 4, the prisoners were not taken out to work and SS men were observed leaving the camp. That day, the commander of the bunker (prison) murdered all prisoners who had worked at the crematorium and the bunker (except for one). The camp was liberated at 11:30 a.m. the next day, May 5, as two American armored vehicles approached the camp gate and were admitted by the prisoners.