A senior Israeli official says Israel believes deeply buried stocks of enriched uranium at one Iranian nuclear facility hit by the U.S. military are potentially retrievable.

The Israeli assessment also holds that Iran's stockpiles were spread across Isfahan, Fordo, and Natanz, and had not been moved.

Some of Iran’s underground stockpile of near-bomb-grade enriched uranium survived U.S. and Israeli attacks last month and may be accessible to Iran’s nuclear engineers, according to a senior Israeli official.