A 2013 report by the United Nations Development Programme (UNDP) in Croatia entitled 'Assessment of the Number of Sexual Violence Victims during the Homeland War on the Territory of the Republic of Croatia and Optimal Forms of Compensation and Support of Victims', determined the estimated victims (male and female) of rape and other forms of sexual assault on both sides to number between approximately 1,470 and 2,205 or 1,501 and 2,437 victims. Most victims were non-Serbs assaulted by Serbs. By region, the largest number of rapes and acts of sexual violence occurred in Eastern Slavonia, with an estimated 380-570 victims. According to the UNDP report, between 300 and 600 men (4.4%-6.6% of those imprisoned) and between 279 and 466 women (or 30%-50% of those imprisoned) suffered from various forms of sexual abuse while being held in Serbian detention camps and prisons (including those in Serbia proper). Between 412 and 611 Croat women were raped in the Serb-occupied territories, outside of detention camps, from 1991 to 1995. Croat forces were also known to have committed rapes and acts of sexual violence against Serb women during Operations Flash and Storm, with an estimated 94-140 victims. Sexual abuse of Serb prisoners also occurred in the Croat-run Lora and Kerestinec camps.