Laos authorities defused a 500-pound MK82 bomb from the Vietnam War found on the outskirts of the capital this week, dpa reported Friday. The ordnance was discovered by workers preparing a construction site on Monday, before being defused and removed from Nayai Chaleun village, the Ministry of National Defense was quoted as saying. It was the fourth MK82 bomb, which has a potential blast area of 1,500 meters, to be found and removed from the district.