"As soon as they arrived in the vicinity of the place where the blockade was reported, the police units were attacked from several different positions with an arsenal of firearms, including hand grenades and shoulder-fired missiles," police said in a statement, AP reported.
Kosovo's Prime Minister Albin Kurti was quick to condemn the attack, calling the ambush an act of terrorism.
"The attackers are professionals with masks and armed with heavy weapons. We condemn this criminal and terrorist attack," Kurti wrote on social media.
"Organised crime with political, financial and logistical support from officials in Belgrade is attacking our country," he added.
The incident comes more than a week after talks between the leaders of Serbia and Kosovo centered on improving ties failed to make a breakthrough during EU-mediated negotiations in Brussels.
MNA/PR