"Any further provocations or unilateral and uncoordinated actions will be unacceptable," the European diplomat said in a statement.
Borrell stressed that he maintains contacts with NATO Secretary General Jens Stoltenberg on this issue.
On September 24, NATO called on Belgrade and Pristina to begin an immediate de-escalation and dialogue on North Kosovo.
Serbian President Aleksandar Vucic said that the Serbian side demands the immediate withdrawal from the administrative line between Kosovo and Metohija and Central Serbia of all units of the Kosovo police special forces.
The Russian Foreign Ministry said that Moscow considers the actions of the Kosovo police in the north of Kosovo as a provocation aimed at squeezing the Serbs out of the territory of the region.