Kosovo police have used tear gas to disperse opposition supporters gathered to protest the arrest of a lawmaker who took part in violence inside parliament trying to force the government to renounce recent deals with Serbia and Montenegro.

Donika Kadaj-Bujupi was arrested Wednesday and arrest warrants were issued for three of her colleagues in the opposition group that has disrupted parliament over the past two months with tear gas and pepper spray, whistles and water bottles. They want the government to withdraw from a deal with Serbia giving more powers to ethnic-Serb communities and from one with Montenegro on border demarcation.

Kosovo in 2008 declared independence from Serbia, but that is not recognized by Belgrade. The two sides are holding EU-led talks to overcome their differences.