( CNN ) -- European Union peacekeepers in Bosnia on Tuesday raided homes belonging to family members of Ratko Mladic , the highest-ranking figure still at large from the Balkan conflict in the mid 1990s , Serbian media reported . Portuguese peacekeepers stand guard outside a home raided on Tuesday . The force raided houses belonging to Mladic 's sister , Milica Avram , and sister-in-law , Radinka Mladic , in East Sarajevo , an area of the city inside the Bosnian Serb-controlled Republika Srpska , a seperate political entity to the Muslim-Croat-controlled Bosnia-Croat Federation . The raids were a part of a broader operation targeting locations and people who are believed to be helping Mladic evade trial , the reports said . Serbian authorities recently put up `` wanted '' posters for Mladic at police stations across Serbia , reminding people of the 1 million euro ( $ 1.3 million ) reward for any information leading to Mladic 's capture . Mladic , who commanded the Bosnian Serb military during the 1992-95 war in Bosnia-Herzegovina , has been the Balkans ' most wanted since former Bosnian Serb leader Radovan Karadzic was arrested in Belgrade last July . The 66-year-old is wanted by the International Criminal Tribunal for the former Yugoslavia ( ICTY ) for allegedly overseeing the killings of almost 8,000 Bosnian Muslim men and boys in the town of Srebrenica in July 1995 . Mladic is charged with genocide , crimes against humanity , and violations of the laws of war . He has been on the run for 13 years , ever since the ICTY issued the indictments against him . The ICTY has accused Serbia of knowing Mladic 's whereabouts and letting him slip through their hands . Serbia 's status as a candidate for European Union membership also remains conditional on Mladic being handed over to the ICTY . Serbian leaders have denied protecting Mladic .
EU troops in Srebrenica raid homes belonging to family members of Mladic . Former Muslim general is highest ranking accused war criminal at large . Mladic accused of orchestrating Bosnia massacre in 13 years . Raids part of operation targeting those believed to be helping Mladic evade trial .