MITROVICA, Kosovo, March 18 (SPA) - A Ukrainian policeofficer serving with the United Nations in Kosovo died ofinjuries sustained in violent clashes with Serbs on Monday, twosecurity sources were quoted as saying by Reuters. The sources could not confirm the cause of death, but NATOand the United Nations say Serbs used automatic weapons and hand grenades in the clashes, the worst since Kosovo's ethnicAlbanian majority declared independence on Feb 17.--SPA www.spa.gov.sa/537600