Tensions rise as Serbia sends troops to border after Kosovo clashes.

Serbia has placed its army on alert and moved units close to the Kosovo border after clashes between police and Kosovo's Serb minority. The violence erupted after police moved to install new ethnic Albanian mayors in the Serb majority border town of Zvecan. Kosovo's Serb minority boycotted April's local elections in four northern municipalities, allowing ethnic Albanians to take control of the councils. The Serbian minority says the establishment of a promised association of Serbian municipalities would work on education, healthcare, land planning and economic development, but ethnic Albanians fear it could allow the formation of a pro-Serbian statelet.