The Prime Minister said the American attacks would “alleviate” the threat posed by Iran’s nuclear programme, but had been pushing for a diplomatic solution rather than US action, which could destabilise the region further.

He said Iran should “never be allowed” to develop a nuclear weapon, adding stability in the Middle East is “a priority”.

Shadow Foreign Secretary Dame Priti Patel told Sky News the American action was “absolutely essential”, describing Iran as a “terrorist state”.

The fighting between Israel and Iran broke out last Friday, with Tel Aviv claiming Tehran was close to acquiring nuclear bombs — something Iran denies.

America’s director of National Intelligence, Tulsi Gabbard, previously said the US believed Iran was not building the weapons but on Saturday claimed intelligence showed Iran could produce one “within weeks to months”.

She said her earlier comments to Congress had been taken out of context “as a way to manufacture division”.

When asked about Ms Gabbard’s comments in March, Mr Trump told reporters on Friday that “she’s wrong”.

A report earlier this month by the UN nuclear watchdog, the International Atomic Energy Agency (IAEA), said Iran had enough uranium enriched to potentially make nine nuclear bombs.

Iran’s Natanz and Isfahan nuclear sites were also hit in the US strikes, reportedly by Tomahawk missiles fired from American submarines.

Mr Trump wrote on his Truth Social platform that a “full payload of BOMBS” was dropped on Fordow.

The facility is built deep beneath a mountain, and it is thought that the only weapon in the world capable of penetrating it is America’s 30,000-lb GBU-57 Massive Ordnance Penetrator bomb.

If confirmed, this would be the first combat use of the MOP, which uses its weight and sheer kinetic force to penetrate underground and then explode.