There is much that is still not known about the US strikes against Iran's nuclear facilities.

Reports are coming in about which sites were hit and what military elements were involved, as President Donald Trump hails the attack on social media.

Here's what we know so far.

Follow latest: US bombers strike three Iranian nuclear sites

Which sites were hit?

America appears to have hit the three key locations in Iran's nuclear programme.

They include Isfahan, the location of a significant research base, as well as uranium enrichment facilities at Natanz and Fordow.

Natanz was believed to have been previously damaged in Israeli strikes after bombs disrupted power to the centrifuge hall, possibly destroying the machines indirectly.

However, the facility at Fordow, which is buried around 80 metres below a mountain, had previously escaped major damage.

Details about the damage in the US strikes is not yet known, although Mr Trump said the three sites had been "obliterated".

Read more:
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What weapons were used in the attacks?

The White House and Pentagon did not immediately elaborate on the operation, but a US official said B-2 heavy bombers were involved.

Fox News host Sean Hannity said he had spoken with the president and that six bunker buster bombs were used on the Fordow facility.

Bunker buster bombs are designed to explode twice. Once to breach the ground surface and again once the bomb has burrowed down to a certain depth.

Israel has some in its arsenal but does not have the much more powerful GBU-57, which can only be launched from the B-2 bomber and was believed to be the only bomb capable of breaching Fordow.

Hannity said 30 Tomahawk missiles fired by US submarines 400 miles away struck the Iranian nuclear sites of Natanz and Isfahan.

How has Iran responded so far?

Iran's foreign minister Abbas Araghchi warned that the US strikes "will have everlasting consequences", adding that his country "reserves all options" to retaliate.

"The events this morning are outrageous and will have everlasting consequences," Mr Araghchi wrote on X. "Each and every member of the UN must be alarmed over this extremely dangerous, lawless and criminal behavior."

Iran has requested an emergency meeting of the UN Security Council to "maintain international peace and condemn the US strikes", according to state media.

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Multiple places in Israel have been hit by Iranian missiles in response.

Several explosions have been heard over Tel Aviv with Israeli media saying missiles have hit northern and central Israel, including in Haifa, Ness Ziona, Rishon LeZion and Tel Aviv.

16 casualties were reported by the country's emergency services.

(c) Sky News 2025: Isfahan, Natanz and Fordow: What we know about the US strikes on Iran's nuclear facilities