All work in the subcamps of Mauthausen stopped and the inmates focused on preparations for their liberation – or defence of the camps against a possible assault by the SS divisions concentrated in the area. The remnants of several German divisions indeed assaulted the Mauthausen subcamp, but were repelled by the prisoners who took over the camp. Of the main subcamps of Mauthausen, only Gusen III was to be evacuated. On 1 May the inmates were rushed on a death march towards Sankt Georgen, but were ordered to return to the camp after several hours. The operation was repeated the following day, but called off soon afterwards. The following day, the SS guards deserted the camp, leaving the prisoners to their fate.