The U.N. Security Council was holding closed-door consultations Thursday to discuss tensions between Kosovo and Serbia that resulted in the death of an ethnic-Albanian policeman earlier this week.

Speaking to reporters ahead of the talks, Serbian Foreign Minister Vuk Jeremić said he had come to the United Nations to give Serbia's version of events and ask the Security Council to condemn unilateral use of force.

He said the international community needs to act swiftly to assure there is no more violence.

The situation was quiet Thursday, after NATO troops took control of two customs posts on Kosovo's northern border with Serbia.

The violence erupted after Kosovo's ethnic-Albanian government sent special police units Monday to take control of northern border crossings to enforce a ban on imports from Serbia. The ban was in retaliation for Serbia's blocking of Kosovo's exports.

After the Kosovo police withdrew Wednesday under an agreement negotiated by NATO, about 200 mostly-masked Serbs armed with firebombs attacked the posts.

Kosovo Prime Minister Hashim Thaci accused Belgrade of masterminding the violence, and Kosovo's Parliament called an extraordinary session to discuss the situation.

But Serbian President Boris Tadic said Wednesday's attack was conducted by hooligans and urged Kosovo Serbs to remain calm.

Serbia asked the U.N. for consultations and sent Foreign Minister Jeremić to New York.

Kosovo declared independence from Serbia in 2008, but the 60,000 Serbs who live in northern Kosovo still consider Belgrade their capital.

The European Union has criticized Kosovo for not coordinating the border post operation with the international community.

European Union-mediated talks between Kosovo and Serbia have made little progress on reconciling the two sides. Serbia has banned the entry of goods from Kosovo since 2008.