A fire occurred at a nuclear complex in the United States that works with plutonium and tritium. During a fire at a facility in South Carolina, "unfiltered release of radioactive materials on Earth," a state of emergency was declared for four hours, some workers were required to remain in shelters; All transport links in the area, including aviation, were temporarily restricted; In the end, no signs of contamination were found outside the facility; The cause of the fire that started in one of the laboratories is now being investigated. Initially, one person was hospitalized; The compound in South Carolina was built in the early 1950s to produce materials for nuclear weapons during the Cold War; Now the facility is used to store and dispose of nuclear materials and waste.