(ANSA-AP) - BELGRADE, 28 MAG - Serbia's state TV says a meeting is underway of the country's top security body following tensions in Kosovo over arrests in the Serb-populated north. The report says President Aleksandar Vucic will speak in the parliament later on Tuesday about the latest developments. It says Vucic has warned the European Union that Serbia will react if Kosovo does not pull its special police out of northern Kosovo. RTS TV also says "movements" of Serbian troops in the direction of Kosovo have been spotted after the country put the security forces on alert earlier on Tuesday. Serbia's National Security Council includes top army and police officers and government officials. Kosovo police have said they have arrested several people in an action in northern Kosovo against crime and corruption. Serbia insists the action is aimed at intimidating Serbs in Kosovo.

Kosovo Prime Minister Ramush Haradinaj confirmed the action, saying on Twitter that an "anti-smuggling and organized crime operation" is underway in northern Kosovo. "This operation is against organized crime and it also targets police and customs officers." Haradinaj said. He called for calm. Serbian government official Marko Djuric said the Kosovo police action is designed to intimidate and expel Serbs from Kosovo and presents a "not only a threat to stability but the most direct threat to peace." "If this doesn't stop immediately, there is no doubt how Serbia will react already during the day," Djuric warned. (ANSA-AP).