The leaders of Serbia and Kosovo could not agree on the car license plates used by Serbs in Kosovo during emergency talks in Brussels, EU High Representative for Foreign Affairs Josep Borrell noted.

"After many hours of discussion ... the two parties did not agree to a solution today," EU foreign policy chief Josep Borrell said in a statement to the media.

"I think that there is an important responsibility on the sides of both leaders for the failure of the talks today and for any escalation and violence that might occur on the ground in the following days."