The region had a mainly Bosniak population and, since the outbreak of armed conflict, had received some 35,000 displaced persons, most of them coming from Serb controlled areas around Banja Luka and Sanski Most in the summer of 1992. In return, most of the Serbs, some 12,000 before the war, left Bihać for Banja Luka at the same time.[12][13]