(CNN) -- For the second time, an international tribunal has acquitted a former Kosovo prime minister and two others of abusing and killing Serbs, raising fears that the Thursday ruling could further strain tense relations between the two countries. The judges ruled there was no evidence that Ramush Haradinaj, who was a commander of the Kosovo Liberation Army before becoming prime minister, and two other former commanders murdered, tortured and unlawfully detained Serbian civilians, according to the summary judgment. It was the second recent high-profile acquittal on appeal by the International Criminal Tribunal for the former Yugoslavia. Two former Croatian generals were cleared of war crimes on November 16.
@highlight
NEW: Amnesty International: "Is anybody ever going to be brought to justice?"
@highlight
Ramush Haradinaj was indicted on charges of abusing and killing detainees
@highlight
A trial court acquitted Haradinaj and two others in 2008
@highlight
Prosecutors appealed, and the appeals chamber reinstated six counts against the three men
Kosovo declared its independence in 2008, but @placeholder has refused to recognize the move.