Sir Keir Starmer has said stability in the Middle East is “a priority” following US strikes on Iran’s nuclear facilities.
The prime minister also called on Iran to “return to the negotiating table” to “reach a diplomatic solution to end this crisis”.
Follow latest: Iran considering ‘all options’ after US strikes
In a statement, Sir Keir said: “Iran’s nuclear programme is a grave threat to international security.
“Iran can never be allowed to develop a nuclear weapon, and the US has taken action to alleviate that threat.
“The situation in the Middle East remains volatile and stability in the region is a priority.
“We call on Iran to return to the negotiating table and reach a diplomatic solution to end this crisis.”
Sky News understands there was no UK involvement in the strikes on Iran.
The US struck three sites in Iran, with Donald Trump boasting the country’s key nuclear sites were “completely and fully obliterated” in an address to the nation from the White House.
Iran’s Atomic Energy Organisation confirmed attacks took place on its Fordow, Isfahan and Natanz sites, but insisted its nuclear programme will not be stopped.
Tehran’s foreign minister Abbas Araghchi warned the strikes “will have everlasting consequences” and said 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 behaviour.
“In accordance with the UN Charter and its provisions allowing a legitimate response in self-defence, Iran reserves all options to defend its sovereignty, interest, and people.”
Israel‘s Prime Minister Benjamin Netanyahu praised Mr Trump for the attack, saying: “Your bold decision to target Iran’s nuclear facilities with the awesome and righteous might of the United States will change history…
“History will record that President Trump acted to deny the world’s most dangerous regime the world’s most dangerous weapons.”
But UN secretary-general Antonio Guterres said he was “gravely alarmed by the use of force” by the US against Iran.
“This is a dangerous escalation in a region already on the edge – and a direct threat to international peace and security. There is a growing risk that this conflict could rapidly get out of control – with catastrophic consequences for civilians, the region, and the world.”
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