Serbian troops on high alert following ethnic clashes in Kosovo.

Serbia has condemned NATO-led peacekeepers in Kosovo for failing to stop "brutal actions" by Kosovo police against ethnic Serbs. Serbia's armed forces stationed near the border will remain on the highest state of alert until further notice. Ethnic Serbs in northern Kosovo had tried to block recently elected ethnic Albanian officials from entering municipal buildings on Friday. Kosovo police fired tear gas to disperse the crowd and let the new officials into the offices. The United States and several Western countries condemned Kosovo's government for using police to forcibly allow entry to the municipal buildings.