 Around Gacko and Avtovac in the north , the day had been quiet . When the commander of the 2nd Company of the 7th Battalion at Gacko reported rebels gathering near the town , Prpić sent a truck @-@ mounted platoon with an ammunition resupply . The platoon was ambushed en route , with 14 Home Guardsmen being captured . Gacko was reinforced later in the day from troops in Avtovac . On the night of 26 June , the Nevesinje garrison was subjected to a sustained attack by the rebels , but held out . 
