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.

Israel believes a U.S. strike buried the enriched uranium under an Iranian facility, the official told reporters in Washington.

A senior Israeli official told The New York Times on Thursday that some of Iran’s highly enriched uranium stockpiles likely survived the recent United States and Israeli strikes on Tehran’s nuclear facilities — and may still be accessible to Iranian nuclear scientists.