Bosnian Serb forces took over the Prijedor municipality on 30 April 1992 in a planned operation involving more than 1,500 armed men, then dismissed non-Serbs from employment, imposed movement restrictions and attacked the Muslim villages of Hambarine and Kozarac in May. About 800 civilians were killed in the assault on Kozarac. Detainees were held at the Omarska mine, the Keraterm ceramics factory and the Trnopolje camp; the ICTY found in Kvocka and others that Omarska held roughly 3,334 people in conditions of extreme overcrowding, starvation rations, beatings on arrival and at interrogation, and rape of the small number of women detained, with prisoners losing 25-35 kilograms. In August 1992, 188 of 200 men separated from a convoy were executed at Korićanske Stijene on Mount Vlašić. Roughly 47,000 non-Serbs were displaced from the municipality. The ICTY charged 27 people over crimes in Prijedor; Milomir Stakić received 40 years, Biljana Plavšić pleaded guilty to the ethnic cleansing campaign, and camp personnel including Miroslav Kvočka, Zoran Žigić and Duško Tadić were convicted.
Bosnian Serb forces seized Prijedor municipality in north-west Bosnia, detained non-Serb civilians in the Omarska, Keraterm and Trnopolje camps and expelled the rest
The 1991 census recorded 112,470 people in Prijedor: about 49,500 Muslims (Bosniaks), 47,800 Serbs, 6,300 Croats and 6,400 who declared themselves Yugoslav. Bosniaks and Croats together, roughly 55,800 people, are the population the takeover acted on; counting those who declared as Yugoslav would raise the figure to about 62,000.
The tribunal materials cited here establish specific figures rather than a total: about 800 civilians killed in the attack on Kozarac and 188 men executed at Korićanske Stijene, alongside numerous killings in the camps. No comprehensive death toll for Prijedor municipality is given in these sources, and estimates by survivor associations are higher than anything judicially confirmed.
All of these forms were established in ICTY judgements arising from Prijedor, principally Kvocka et al. and Stakic.
Bosnia and Herz.