 Also on that morning , the 200 Home Guard troops and about 50 armed locals in Avtovac were attacked from three directions by rebels . They recovered from their initial surprise and held the town during the day , but in the evening a renewed assault caused them to withdraw from Avtovac and retreat to the villages of <unk> and <unk> . Upon capturing Avtovac , the rebels looted the village , burned down a large number of Muslim homes and killed 32 Muslim civilians , mostly women , children and the elderly . Gacko was also attacked by the rebels , with eight soldiers killed , and one officer and 12 soldiers wounded . Also on 28 June , two Italian Army trucks driving from Bileća to Avtovac were ambushed by rebels , who killed three soldiers and wounded 17 . Around 18 : 00 , the Italian command advised Kvaternik that they would be clearing the route from Bileća via Gacko to Nevesinje on an unspecified future date . During the fighting around Gacko , several ZNDH aircraft were forced to land due to pilot casualties and engine trouble . ZNDH air support operations were suspended due to lack of fuel and <unk> for the aircraft . 
