The images of Fordow show bulldozers moving dirt near craters and working on access roads, and other construction equipment near the site.

The deep penetrating bombs that the U.S. dropped into two Iranian nuclear facilities were designed specifically for those sites and were the result of more than 15 years of intelligence and weapons design work.

Attacks also destroyed facilities linked to nuclear development, including the headquarters of Iran’s defence research agency, and buildings at a university in Tehran believed to be associated with the nuclear programme.