The KFOR mission said on Monday that some 25 of its troops were injured while containing the demonstrations in the town of Zvecan.

“Several soldiers of the Italian and Hungarian KFOR contingent were the subject of unprovoked attacks and sustained trauma wounds with fractures and burns due to the explosion of incendiary devices,” a press release said.

It said that KFOR commander General Angelo Michele Ristuccia is personally following developments. “He stressed that the unprovoked attacks on NATO units are unacceptable and KFOR will continue to fulfill its mandate impartially,” it added.

KFOR deployed units in the four majority-Serb north Kosovo municipalities to contain violent demonstrations after new Albanian mayors, elected in local elections boycoted by the Serbs, tried to take office with assistance from the Kosovo police.