Tensions rise as ethnic clashes in Kosovo prompt Serbian border troops to remain on high alert.

Serbian troops on the border with Kosovo were put on high alert following clashes inside Kosovo between police and ethnic Serbs that injured more than a dozen people. Ethnic Serbs in northern Kosovo had tried to block recently-elected ethnic Albanian officials from entering municipal buildings earlier Friday. In response to the clashes, Serbian President Aleksandar Vucic said he put the army on the “highest state of alert” and ordered an “urgent” movement of troops closer to the border. The United States condemned Kosovo’s government for using police to forcibly enter the municipal buildings.