Two Serbs were killed and two were wounded when their car was shot at in Kosovo, police said on Sunday, shattering a year-long lull in attacks there on Serbs, reported Reuters. Police said the car came under fire from an overtaking vehicle late on Saturday near the southern town of Strpce. Serbia's prime minister denounced the shooting as ethnically motivated, but police denied Serb media reports that three ethnic Albanians had been arrested for the attack. The United Nations has run the majority-Albanian province, legally part of Serbia, since a 1998-99 war ended with the withdrawal of Serb forces. Thousands of Serbs left and those who stayed have been frequent targets. The U.N. is within weeks of deciding whether the province has made enough progress on standards of democracy, minority rights and security for "final status" negotiations, which Albanians hope will bring formal independence. Serbia's prime minister seized on the killings as evidence such standards are far from being met. --More 2239 Local Time 1939 GMT