NATO's Kosovo force (KFOR) has asked for more troops following last week's unrest in the north of the province, regional media reported on Tuesday.
KFOR spokesman Hans Dieter Wichter said the command had asked for "one battalion," but declined to cite an exact number of soldiers.
The KFOR mission currently has around 6,000 soldiers on the ground.
Kosovo sent special police forces to its Serbian-populated north last Monday to enforce a ban on imports from Serbia, but local Serbs opposed the move.
Special units came under attack from local Serbs as they pulled out in the direction of the northern town of Mitrovica.
Serbs in northern Kosovo are the biggest non-Albanian community remaining in the country following the 1998-99 Kosovan war of independence.