1958 Mars Bluff B-47 nuclear weapon loss incident

The 1958 Mars Bluff B-47 nuclear weapon loss incident was the inadvertent release of a nuclear weapon from a United States Air Force B-47 bomber over Mars Bluff, South Carolina. The bomb, which did not have its fissile nuclear core installed at the time of the accident, impacted with the ground, and its conventional high explosives detonated.

Source: Wikipedia — 1958 Mars Bluff B-47 nuclear weapon loss incident (CC BY-SA 4.0)