The UK is set to push for a peace plan for the Middle East at the UN General Assembly after recognising the state of Palestine.

Foreign Secretary Yvette Cooper is expected to use the summit to address civilian suffering in war-torn Gaza and aim to strengthen “the international consensus on our pathway for peace in the Middle East”.

She will hold bilateral meetings to advance elements of the peace plan, including security measures to ensure Hamas has no role in the future governance of Gaza, according to the Foreign Office.

Prime Minister Sir Keir Starmer, who won’t attend the summit, announced on Sunday that the UK recognises Palestine as an independent state, to “revive the hope of peace for the Palestinians and Israelis, and a two-state solution”.

It is a significant moment in the history of Britain’s involvement in the region, and comes as the number of people killed during the Gaza conflict continues to rise and conditions for the people trapped become even more desperate.

Australia, Canada and Portugal made similar announcements, with France expected to follow suit at the UN on Monday.

The move was met with fierce backlash by Israel, with Prime Minister Benjamin Netanyahu saying it was “absurd” and a “huge reward to terrorism”. He also vowed that a Palestinian state “will not happen”.

Read more: What recognising a Palestinian state actually means

Separately, an Israeli official said the “full or partial annexation of the West Bank” is now “an option under consideration in response” to the move.

US President Donald Trump also addressed the coordinated recognition of the state of Palestine by the UK, Australia, Canada and Portugal, saying “I’m not in that camp” because recognising a Palestinian state was “rewarding Hamas”.

The families of hostages held in Gaza called it a “betrayal of humanity and a move that rewards Hamas while 48 hostages remain in captivity”.

Palestinian President Mahmoud Abbas said the recognition of the state of Palestine would allow it to “live side by side with the State of Israel in security, peace, and good neighbourliness”.

Senior Hamas official Mahmoud Mardawi reportedly celebrated the move as a victory for “the justice of our cause”.

But Sir Keir was clear to emphasise that recognition of Palestine was “not a reward for Hamas”, saying the terror group “can have no future, no role in government, no role in security” in a future state and confirming plans to ratchet up sanctions on Hamas “in the coming weeks”.

“Our call for a genuine two-state solution is the exact opposite of their hateful vision,” he added.

The prime minister also repeated his criticism of Israel, which for nearly two years has waged war on the densely populated Gaza Strip.

“The Israeli government’s relentless and increasing bombardment of Gaza, the offensive of recent weeks, the starvation and devastation are utterly intolerable,” he said.

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The number of people killed in Gaza since the IDF launched its offensive following the 7 October attacks has now risen above 65,000, according to Hamas-run health authorities.

“This death and destruction horrifies all of us. It must end,” Sir Keir said.

In recognising Palestine as a state, the UK does so based on 1967 borders to be finalised as part of future negotiations. It would be led by a “reformed Palestinian Authority”.

The UK also acknowledges “all legal rights and obligations of statehood” for Palestine.

An updated map on the UK’s Foreign, Commonwealth & Development Office website now has the West Bank and Gaza labelled as ‘Palestine’ rather than the ‘Occupied Palestinian Territories’. This change has been rolled out across the website.