IDF spokesman Lt. Col. Efi Defrin announced in a statement that the Air Force earlier attacked the secret "Min-Zadaa" compound, near Tehran, where the Iranian regime was working to develop capabilities required for nuclear weapons. He noted that despite the "severe damage to Iran's nuclear weapons group" during "Yam Kalvia," Iran did not halt its military nuclear activity and continued to develop the capabilities required for nuclear weapons, while transferring infrastructure to an underground site protected from aerial attack. "Inside the site, a group of nuclear scientists operated covertly to develop a central component in the nuclear weapons system," he said. "The strike eliminates a core component of the Iranian capability to develop nuclear weapons."