In May 1992, intensive shelling and infantry attacks on Bosniak areas in the municipality caused the Bosniak survivors to flee their homes. The majority of them surrendered or were captured by Serb forces. As the Serb forces rounded up the Bosniak and Croat residents, they forced them to march in columns bound for one or another of the prison camps that the Serb authorities had established in the municipality. On about 25 May 1992, about three weeks after the Serbs took control of the municipal government, and two days after the start of large scale military attacks on Bosniak population centers, Serb forces began taking prisoners to the Omarska camp. During the next several weeks, the Serbs continued to round up Bosniaks and Croats from Kozarac near Prijedor, and other places in the municipality and send them to the camps. Many Bosniak and Croat intellectuals and politicians were sent to Omarska. While virtually all of the prisoners were male, there were also 37 women detained in the camp, who served food and cleaned the walls of the torture rooms, and were repeatedly raped in the canteen; bodies of five of them have been exhumed.