Following the invasion of the Japanese puppet state of Manchukuo (Manchuria), the Soviets laid claim to valuable Japanese materials and industrial equipment in the region. A foreigner witnessed Soviet troops, formerly stationed in Berlin, who were allowed by the Soviet military to go at the city "for three days of rape and pillage." Most of Mukden was gone. Convict soldiers were then used to replace them; it was testified that they "stole everything in sight, broke up bathtubs and toilets with hammers, pulled electric-light wiring out of the plaster, built fires on the floor and either burned down the house or at least a big hole in the floor, and in general behaved completely like savages."