A fire at the American nuclear complex; Declaration of emergency A fire at the Savannah River National Laboratory, located at the nuclear complex of the US Department of Energy in the state of South Carolina, led to the declaration of a state of emergency at this complex. In this incident, one of the workers was slightly injured and was taken to the hospital. The cause of the fire has not yet been released. According to the report in the Associated Press, the fire was extinguished by Wednesday evening local time and the activity of the complex returned to normal. The Savannah River Complex, established in the 1950s during the Cold War to produce materials used in nuclear weapons, including plutonium-239 and tritium, continues to operate in the areas of nuclear materials management, radioactive waste, and tritium-related operations. The Savannah River National Laboratory is located in the northwestern part of this complex, and in addition to nuclear research, it also plays a role in the processing of radioactive materials and the recovery of isotopes from spent nuclear fuel.