A cluster bomb left over from last year's Israel-Hizbullah war exploded in south Lebanon on Wednesday, killing a 35-year-old man, the state-run news agency said. The bomb went off as Mohammad Hamzeh was collecting firewood in the town of Zibqine near the southern port city of Tyre. According to the National News Agency, Hamzeh was instantly killed. More than 30 people have been killed by cluster bomb and land mine explosions in Lebanon since the 2006 summer war between Hizbullah and Israel. The United Nations and human rights groups accuse Israel of dropping about 4 million cluster bomblets during the war. Up to 1 million failed to explode and now endanger civilians in the area.