Kosovo’s government has postponed for a month the implementation of new border rules that sparked tensions in the north of the country where ethnic Serbs blocked roads and unknown gunmen fired on police, writes Al Jazeera.

Police closed two border crossings with Serbia on Sunday after the incident during which no one was injured, a police statement said.

The latest tensions came after the government in Pristina said from Monday, people entering Kosovo with Serbian IDs would have to replace them with a temporary document during their stay in the country.

The government also said ethnic Serbs who have vehicle registration plates issued by Serbia would have to change them for Kosovo licence plates within two months. Prime Minister Albin Kurti said on Sunday it was a reciprocal move since the government in Belgrade requires the same from Kosovo citizens entering Serbia.

But, after meeting United States Ambassador to Kosovo Jeffrey Hovenier, who told reporters he sought from Pristina that implementation of the new regime be postponed for 30 days, the government pledged to do so.

It said in a statement it would postpone the implementation of the two decisions until September 1, seeking that “all barricades are removed and full freedom of movement is established” on Monday.