In apparent retaliation for NATO 's detention of the Serbs , an angry Serb mob including policemen trapped six unarmed U.N. police monitors and three local aides in their office in the town of Zvornik , east of Mahala .
<response> In apparent retaliation for <organization>NATO</organization> 's detention of the <misc>Serbs</misc> , an angry <misc>Serb</misc> mob including policemen trapped six unarmed <organization>U.N.</organization> police monitors and three local aides in their office in the town of <location>Zvornik</location> , east of <location>Mahala</location> . </response>