 A K-4 convoy of Polish troops arrived in Zwickon on June 2 to reinforce the NATO peacekeeping forces guarding municipal buildings in the northern Kosovo town. Zwickon has been the setting for the most violent clashes between NATO troops and Serb protesters. Violence flared up on Monday after Kosovo authorities, backed by special police units, installed ethnic Albanian mayors in offices in northern municipalities. The mayors had been elected with a turnout of just 3.5% after Serbs boycotted the local Poles. The clashes wounded 30 NATO peacekeeping troops and 52 Serb protesters. NATO decided to deploy 700 additional peacekeepers to Kosovo in response to the crisis. Lulzum Hademi, an ethnic Albanian mayor in Lepisabic, has been in his office since early Monday with NATO peacekeepers guarding the town hall behind razor wire. A K-4 convoy of Polish troops arrived in Zwickon on June 2 to reinforce the NATO peacekeeping