The Kosovo Serbs, who do not recognise Kosovo's 2008 independence declaration from Serbia, put up the barricades on two disputed border points with Serbia in July, when Kosovo's ethnic Albanian-dominated authorities tried to take them over.
Clashes broke out after previous attempts to remove them by NATO peacekeepers (KFOR), who have patrolled Kosovo since Serbian forces withdrew in 1999 and a UN administration took over. A European Union mission (EULEX) replaced it in 2008.
"Serbia and the UN Security Council should facilitate the return of parts of the (Serbian) army and police and their deployment in Kosovo's north," said a declaration issued after a meeting of local Serb leaders.
KFOR was not immediately available to comment. KFOR commander, German General Erhard Drews said earlier he was disappointed with the Kosovo Serbs's defiance and that peackeepers would remove the roadblocks themselves unless they changed their minds.