In addition, the Omarska and Keraterm camps also operated in a manner designed to discriminate and subjugate the non-Serbs by inhumane acts and cruel treatment. These acts included the brutal living conditions imposed on the prisoners. There was a deliberate policy of overcrowding and lack of basic necessities of life, including inadequate food, polluted water, insufficient or non-existent medical care and unhygienic and cramped conditions. The prisoners all suffered serious psychological and physical deterioration and were in a state of constant fear. Inmates were usually killed by shooting, beating or by the cutting of throats; however, in one incident, prisoners were incinerated on a pyre of burning tires. The corpses were then transferred onto trucks by other inmates or using bulldozers. There were instances where prisoners were brought to dig the graves and did not return. The ICTY Trial Chamber in the Stakić case found on the basis of the evidence presented at trial, that "over 100" prisoners were killed at the camp in late July 1992. About 200 people from Hambarine brought to the camp in July 1992 were held in the building known as the "white House". In the early hours of 17 July, gunshots were heard that continued until dawn. Corpses were seen in front of the "white house" and camp guards were seen shooting rounds of ammunition into the bodies. A witness testified that "everyone was given an extra bullet that was shot in their heads". About 180 bodies in total were loaded onto a truck and taken away.