Brussels - (AFP) - "Crisis management" talks between Kosovo and Serbia , mediated by the European Union, failed Thursday to calm the escalating tension between the two Balkan neighbors, but new talks are expected at a later time, EU Foreign Minister Josep announced. Burrell.

"Unfortunately, we did not reach an agreement today (...) but that does not mean the end of the story," Borrell said at the end of the talks hosted by Brussels.

"The talks will resume in the coming days (...) I am not giving up," he added.

Kosovo Prime Minister Albin Kurti and Serbian President Aleksandar Vucic took part in talks chaired by Borrell aimed at defusing the hostility that has led to violence in northern Kosovo in recent weeks.

Petr Petkovic, an aide to Vucic, told reporters in Brussels that the Serbian president will return Friday to Belgrade to deliver "what will be one of his most important speeches" on the relationship with Kosovo.

And the Serbian official media pointed out that Vucic will hold Sunday "an emergency meeting" in Belgrade with the leaders of the Serb minority in Kosovo.

Petkovic did not specify what position Vucic would take, but noted that the Serbian president will spend Thursday evening in Brussels "in the hope of reaching a settlement."

Borrell did not explain the obstacles to the talks, but stressed that the talks "were not a normal meeting," expressing concern about "the escalation of tension in northern Kosovo."

"It was a crisis management meeting. The meeting aimed to calm the situation on the ground," he said.

Issues arousing tension between Serbia and Kosovo include the imposition of license plates by Pristina for vehicles also owned by members of the Serb minority in the north, as well as the requirement to present documents upon entry or exit at the border between the two countries.

Borrell warned that "the international community does not want to see renewed tensions in the coming period, and the parties will be fully responsible for any escalation on the ground."

Belgrade never recognized the independence declared by Kosovo in 2008, after a decade of bloody war that left 13,000 people dead, most of them Kosovo Albanians. Since then, the region has been witnessing unrest from time to time. The Kosovo Serbs, numbering about 120 thousand, a third of whom live in the north, do not recognize the authority of Pristina and remain loyal to Belgrade.

And new violence erupted at the end of July in northern Kosovo, prompting NATO Secretary-General Jens Stoltenberg to say on Wednesday that the NATO peacekeeping force in Kosovo (the International Security Force in Kosovo) is "ready to intervene if stability is threatened," With the aim of securing "freedom of movement for all residents" in the former Serbian province.

He made his statement after separate meetings with Vucic and Corti at NATO headquarters in Brussels.

Vucic and Corte also met US Deputy Assistant Secretary of State Gabriel Escobar in Brussels on Wednesday night. Escobar, who works on US policy in the Western Balkans, had traveled to Brussels to attend the previous round of dialogue between Serbia and Kosovo.