Gunmen have killed an Indian officer in the first deadly attack on Kosovo’s U.N. police force since the 1999 war, U.N. officials said Monday. The ambush late Sunday on a U.N. police vehicle in northern Kosovo is likely to heighten security concerns after several violent incidents across the U.N.-governed province in recent weeks, although officials cautioned against linking them. “This was a direct attack on international forces of law and order,” said the acting head of the United Nations in Kosovo, U.S. diplomat Charles Brayshaw. A U.N. spokesman said the police vehicle was apparently forced to slow down because of rocks lying on the road to the town of Leposavic. “That’s when the shooting started,” he said. Full Story