The incident defined as the "nuclear accident of the USA" took place at the Savannah National Laboratory according to a publication on the Savannah River website, which is a facility of the National Security Agency, where a state of emergency was declared a few hours ago due to a fire that was later extinguished. The message says: "No incidents of contamination outside the affected facility have been reported." In addition to the precautionary measures taken, a temporary flight ban was imposed on the area.