Fire at US nuclear facility in South Carolina A fire at a laboratory at a nuclear site in South Carolina - located in an area that produces materials needed for US nuclear weapons - prompted emergency measures, US officials said. The complex's emergency organization announced that a state of emergency has been declared at the "Savannah River National Laboratory" (Savannah River National Laboratory) - located near the city of "Aiken" and within the "Savannah River Site" belonging to the United States Department of Energy. This caused a temporary stoppage of traffic at the entrances to these facilities.