American nurse Andee Vaughan, right, attends to a child suffering from severe burns after an Israeli army strike on his house at the Al-Quds Hospital in Gaza City on July 24. (Courtesy Andee Vaughan via AP)

DEIR AL-BALAH, Gaza Strip — U.S. President Donald Trump said Friday that Hamas must agree to a proposed peace deal by Sunday evening, threatening an even greater military onslaught nearly two years into the war sparked by the Oct. 7, 2023, attack into Israel.

Trump appears keen to deliver on pledges to end the war and return dozens of hostages ahead of the second anniversary of the attack on Tuesday. His peace plan has been accepted by Israel and welcomed internationally, but key mediators Egypt and Qatar, and at least one Hamas official, have said some elements need further negotiation, without elaborating.

“An Agreement must be reached with Hamas by Sunday Evening at SIX (6) P.M., Washington, D.C. time,” Trump wrote Friday on social media. “Every Country has signed on! If this LAST CHANCE agreement is not reached, all HELL, like no one has ever seen before, will break out against Hamas. THERE WILL BE PEACE IN THE MIDDLE EAST ONE WAY OR THE OTHER.”

Trump’s plan

Under the plan, which Trump unveiled earlier this week alongside Israeli Prime Minister Benjamin Netanyahu, Hamas would immediately release the remaining 48 hostages — around 20 of them believed to be alive. It would also give up power and disarm.

In return, Israel would halt its offensive and withdraw from much of the territory, release hundreds of Palestinian prisoners and allow an influx of humanitarian aid and eventual reconstruction. Plans to relocate much of Gaza’s population to other countries would be shelved.

The territory of some 2 million Palestinians would be placed under international governance, with Trump himself and former British Prime Minister Tony Blair overseeing it. The plan provides no path for eventual reunification with the Israeli-occupied West Bank in a future Palestinian state.

A Hamas official told The Associated Press this week that some elements of the plan are unacceptable and need to be amended, without elaborating. Palestinians long for an end to the war, but many view this and previous U.S. proposals as strongly favoring Israel.

Pressure on Hamas

Israel has sought to ramp up pressure on Hamas since ending an earlier ceasefire in March. It sealed the territory off from food, medicine and other goods for 2 1/2 months and has seized, flattened and largely depopulated large areas of the territory.

Experts determined that Gaza City had slid into famine shortly before Israel launched a major offensive aimed at occupying it. An estimated 400,000 people have fled the city in recent weeks, but hundreds of thousands more have stayed behind.

Olga Cherevko, a spokesperson for the U.N. humanitarian office, said she saw several displaced families staying in the parking lot of Shifa Hospital during a visit on Thursday.

“They are not able to move south because they just cannot afford it,” Cherevko told The Associated Press. “One of the families had three children and the woman was pregnant with her fourth. And there were many other vulnerable cases there, including elderly people and people with disabilities.”

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Khaled reported from Cairo. Associated Press writer Chris Megerian in Washington contributed.

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Follow AP’s war coverage at https://apnews.com/hub/israel-hamas-war