Muslim government convoy ambushed in same province as massacre . Seventeen children and an adult were freed soon after , and negotiations continued to secure the release of the rest , said Army Capt . Convoy was returning from raid on compound of former provincial governor . 75 people killed in Philippines in apparently politically-motivated attack . Separately , 57 civilians kidnapped from a region in southern Maguindanao .
Muslim government convoy ambushed in same province as massacre . Convoy was returning from raid on compound of former provincial governor . 75 people killed in Philippines in apparently politically-motivated attack . Separately , 57 civilians kidnapped from a region in southern Maguindanao .