Soldiers destroyed two Tamil Tiger rebel bunkers in northern Sri Lanka while fighting in the region killed 11 separatists and wounded eight soldiers, the military said Saturday. Fighting between the two sides has sharply increased in recent weeks. Troops destroyed two rebel bunkers in the village of Kilali on the northern Jaffna peninsula Friday night, a defense ministry official said. Also Friday, soldiers killed four rebels in a battle in Vavuniya district, just south of rebel-held territory, the official said. One soldier was wounded in the fighting. __