Lebanese troops killed 28 al-Qaida-inspired militants and captured 15 others in a massive gunfight Sunday after they broke out of a northern Palestinian refugee camp devastated by over three months of fighting, said a senior security official. The official, speaking on condition of anonymity because no official casualty figure was released, could not confirm earlier reports that 15 Fatah Islam fighters were wounded in the battle. A military statement earlier said troops were attacking the remaining militant strongholds inside Nahr el-Bared and chasing the fugitives outside the camp who had staged a desperate attempt to flee.