Drita Hajdari told a debate in Pristina on Wednesday evening that Kosovo is obliged to back the new Specialist Chambers, set up in The Hague to prosecute former Kosovo Liberation Army fighters for wartime and post-war crimes.
"The issue of war crimes cannot be an isolated issue for Kosovo alone," Pristina-based prosecutor Hajdari said.
Albin Kurti, a member of the Kosovo Assembly from the opposition Self-Determination, has been arrested.
The arrest took place in front of the Assembly, Tanjug is reporting on Friday, citing RTK2.
Two other Self-Determination members of the Assembly, Albulena Haxhiu and Donika Kadaj-Bujupi, have also been arrested.
Kosovo police arrested three Vetevenedosje MPs, Albin Kurti, former leader of Vetevendosje, Albulena Haxhiu and Donika Kadaj Bujupi, at around 10am on Friday in Pristina while they were going to parliament to attend a session.
A Kosovo judge clarified on Thursday that he had issued arrest warrants for three opposition Vetevendosje MPs, including Albin Kurti, after they failed to show up for their trial the day before for throwing tear gas in parliament.