US Defence Secretary Pete Hegseth on Thursday said he was unaware of any intelligence suggesting Iran had moved any of its highly enriched uranium to shield it from US strikes on Iran’s nuclear programme over the weekend.

“I’m not aware of any intelligence that I’ve reviewed that says things were not where they were supposed to be, moved or otherwise,” Hegseth said.

After the strikes, several experts also cautioned that Iran likely moved a stockpile of near weapons-grade highly enriched uranium out of Fordow before the strike early Sunday morning and could be hiding it and other nuclear components in locations unknown to Israel, the US and UN nuclear inspectors.

They noted satellite imagery from Maxar Technologies showing “unusual activity” at Fordow on Thursday and Friday, with a long line of vehicles waiting outside an entrance to the facility.

A senior Iranian source told Reuters on Sunday most of the near weapons-grade 60% highly enriched uranium had been moved to an undisclosed location before the US attack.

Hegseth’s comments denying those claims came at a news briefing where he accused the media of downplaying the success of US strikes on Iran’s nuclear programme following a leaked, preliminary assessment from the Defence Intelligence Agency suggesting they may have only set back Iran by months.

Hegseth said the assessment was low confidence, and, citing comments from CIA Director John Ratcliffe, said it had been overtaken by intelligence showing Iran’s nuclear programme was severely damaged by recent US strikes, and that it would take years to rebuild.