US President Donald Trump has said that any new nuclear facilities that Iran decides to build will be destroyed, while doubling down on the administration's claim that America's military strikes "completely destroyed" three nuclear sites in the West Asian country in June.

While US officials initially claimed significant setbacks to Iran’s nuclear infrastructure, several outlets later cited intelligence assessments suggesting that only the Fordow site had sustained heavy damage.

A new U.S. assessment has found that U.S. strikes in June mostly destroyed one of three targeted Iranian nuclear sites, but the other two were not as badly damaged, NBC News reported on Thursday, citing current and former U.