On Monday, August 6, 1945, at 8:15 AM, the Atomic Bomb "Little Boy" was dropped on Hiroshima by an American B-29 bomber, the Enola Gay, directly killing an estimated 80,000 people. By the end of the year, injury and radiation brought total casualties to 90,000–140,000. Approximately 69% of the city's buildings were completely destroyed, and another 7% severely damaged.