The Nazis considered certain groups of people, such as Jews, Roma, Poles, and other Slavic people, to be subhuman ("Untermenschen"). They were subjected to extreme discrimination, persecution, and violence, including slave labor. In concentration camps, prisoners who were considered subhuman were often given the worst possible work, such as digging ditches, hauling heavy objects, or cleaning latrines. Many of these prisoners died as a result of the hard work, malnutrition, and abuse they endured.