The images, released by US defence contractor Maxar Technologies, captured more than a dozen cargo-style trucks lined up outside the Fordow nuclear enrichment site鈥檚 tunnel entrance on Thursday and Friday, The New York Post reported.
The vehicles, which came and went over a 24-hour stretch, appeared to move unidentified contents roughly half a mile (804 metres) away, The Free Press reported, citing US officials.
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US and Israeli intelligence officials were aware of the movement at the time but opted not to act so they could track where the trucks headed and await President Donald Trump鈥檚 order to carry out the strikes, the officials said.
Mr Trump gave the green light to launch 75 precision-guided munitions, including bunker-buster bombs and more than two dozen Tomahawk missiles, against Fordow and two other Iranian nuclear sites early on Sunday.
Iranian state media outlets have since claimed that the Fordow, Isfahan and Natanz sites were evacuated in the lead up to the strikes.
Iran hasn鈥檛 officially disclosed how much damage was sustained in the attack but White House Press Secretary Karoline Leavitt insisted on Monday the Trump administration was 鈥渃onfident鈥 that Tehran鈥檚 nuclear sites were 鈥渃ompletely and totally obliterated鈥.
鈥淲e have a high degree of confidence that where those strikes took place is where Iran鈥檚 enriched uranium was stored,鈥 she told ABC News.
鈥淭he President wouldn鈥檛 have launched the strikes if we weren鈥檛 confident in that.
鈥淪o the operation was a resounding success and administration officials agree with that, as well as Israel.鈥
Mr Trump, for his part, hailed the strikes as a 鈥淏ullseye!!!鈥.
Satellite imagery appeared to show that the strikes had severely damaged 鈥 or destroyed 鈥 the Forlow plant and possibly the uranium-enriching centrifuges it housed.
鈥淢onumental Damage was done to all Nuclear sites in Iran,鈥 the President said in a Truth Social post.
鈥淭he biggest damage took place far below ground level. Bullseye!!!鈥
Still, US defence officials have said they are working to determine just how much damage the strikes did as speculation mounted that Iran could have shifted uranium from the underground military complex.
鈥淚 wish the Israelis had moved quicker to disable Fordow,鈥 David Albright, a former United Nations weapons instructor, told The Free Press in the wake of the attacks.
鈥淚t鈥檚 still a mystery exactly what was in those trucks. But any highly enriched uranium at Fordow was likely gone before the attack.鈥
Secretary of State Marco Rubio told NBC鈥檚 Meet the Press that he doubts Iran was able to move anything prior to the attacks but acknowledged 鈥渘o one will know for sure for days鈥.
鈥淚 doubt they moved it,鈥 he said.
鈥淭hey can鈥檛 move anything right now inside of Iran. I mean, the minute a truck starts driving somewhere, the Israelis have seen it, and they鈥檝e targeted it and taken it out.鈥
He added that US officials believe a significant amount of Iran鈥檚 stockpile of 60 per cent uranium had been located in the Isfahan facility when it was targeted.
鈥淥ur assessment is we have to assume that that鈥檚 a lot of 60 per cent enriched uranium buried deep under the ground there is Isfahan,鈥 Mr Rubio said.
Mr Rubio didn鈥檛 specifically mention Fordow or Natanz but said Iran should now bring its stockpile 鈥渙ut of the ground and turn it over鈥.
鈥淭hat really is the key,鈥 he said. 鈥淢ultiple countries around the world will take it and down blend it. That鈥檚 what they should do with that.鈥
Ms Leavitt, meanwhile, dismissed Iran鈥檚 threat of retaliation 鈥 insisting the US and the world were safer thanks to the President鈥檚 attack.
鈥淛ust to be clear, yes, this strike on Saturday did make our homeland safer because it took away Iran鈥檚 ability to create a nuclear bomb,鈥 she told ABC News.
鈥淭his is a regime that threatens death to America and death to Israel. And they no longer have the capability to build this nuclear weapon and threaten the world. So (it鈥檚) not just the United States that鈥檚 a safer place, but also the entire globe.鈥
This article was originally published on The New York Post and was reproduced with permission