The Pentagon said on Wednesday that U.S. strikes 10 days ago had degraded Iran's nuclear program by up to two years, suggesting the U.S. military operation likely achieved its goals despite a far more cautious initial assessment that leaked to the public.

The Iranian government has suspended cooperation with the U.N.'s International Atomic Energy Agency until the security of Iran's nuclear facilities and activities is assured.

The U.S. bombing of Iran's key Fordow nuclear site has "seriously and heavily damaged" the facility, Iranian Foreign Minister Abbas Araqchi said in an interview with CBS News. "No one exactly knows what has transpired in Fordow.