A police officer with the European Union's mission in Kosovo was shot and killed when two EU vehicles were fired on in a northern, mainly ethnic Serb region of the Balkan country, the mission, EULEX, said in a statement.
EULEX said on Thursday the officer, whom it did not identify, was part of a regular rotation from a border crossing with Serbia near the town of Zvecan.
"We admitted around 8:15 am (0615 GMT) a member of EULEX shot with two bullets," Milan Ivanovic, head of the hospital in Kosovska Mitrovica, told AFP news agency.
He was pronounced dead moments later.
Kosovo declared independence from Serbia in 2008 but minority Serbs in the north reject the secession.