Protests supporting Gaza take place in Europe
Hundreds of thousands of people demonstrated on Sunday.
Hamas responded Friday to President Donald Trump's proposal for peace in Gaza, as the president gave a deadline of 6 p.m. ET Sunday to sign on to the plan he unveiled earlier this week.
Hamas said it will release all remaining hostages if Israel withdraws from Gaza and "proper field conditions are met." More negotiations will need to take place to finalize the deal, which Trump unveiled Monday while hosting Israeli Prime Minister Benjamin Netanyahu at the White House.
Any agreement could mean an end to the Israel Defense Forces' operation to take control of Gaza City, the largest urban area in the Gaza Strip.
Multiple Western nations recognized Palestinian statehood in recent weeks while also demanding that Hamas not be part of any future government.
Netanyahu said that Israel will not allow an independent Palestinian state to exist.
Key Headlines
Egypt to host ceasefire talks on Monday
Egypt will host talks with Israeli and Hamas representatives on Monday to build on the ceasefire "momentum" produced by U.S. President Donald Trump's peace plan, according to a statement posted to the Egyptian Foreign Ministry's official Facebook account on Saturday.
It is not yet clear where in Egypt the talks will be held. High-level representatives have been travelling to the country in recent days, including Trump's special envoy Steve Witkoff and Jared Kushner.
The talks will include discussions of "the ground conditions and details of the exchange of all Israeli detainees and Palestinian prisoners," the Egyptian ministry's statement said.
"The meeting is hoped to end the war and alleviate the suffering of the brotherly Palestinian people, which has continued for two consecutive years," it added.
"These consultations come within the framework of efforts to build on the regional and international momentum achieved following the presentation of U.S. President Donald Trump's plan to end the war in the Gaza Strip," the statement said.
-ABC News' Quinn Scanlan, Nasser Atta and Somayeh Malekian
IDF will increase 'intensity of fire' until Hamas releases hostages, Katz says
Israeli Defense Minister Israel Katz said Sunday that the Israel Defense Forces will "increase the intensity of the fire" if Hamas refuses to release all remaining hostages, as heavy strikes continued in Gaza City despite a proposed ceasefire deal.
Speaking at an IDF ceremony on Sunday, Katz said Israelis may hear news of the return of all hostages "soon."
Katz said the IDF is still operating "in the heart of Gaza City." The defense minister suggested that Hamas' apparent receptiveness to U.S. President Donald Trump's peace proposal is due to "the intensity of the pressure that Israel is exerting on Gaza City."
"If Hamas refuses to release the hostages, the IDF will once again increase the intensity of the fire until Hamas is convinced and all the hostages are released," Katz said.
-ABC News' Jordana Miller and Somayeh Malekian
Key Arab and Muslim states welcome Hamas response to Trump plan
The foreign ministers of Qatar, Jordan, the UAE, Saudi Arabia, Egypt, Indonesia, Pakistan and Turkey released a new statement praising Hamas' response to U.S. President Donald Trump's proposal to end the war on Gaza.
The ministers "welcomed the steps taken by Hamas" regarding Trump's proposal, "to end the war on Gaza, release all hostages, alive or deceased, and the immediate launch of negotiations on implementation mechanisms," according to the text of the statement published by Qatar's Foreign Ministry.
The foreign ministers also welcomed Hamas' "readiness to hand over the administration of Gaza to a transitional Palestinian Administrative Committee of independent technocrats."
-ABC News' Nasser Atta and Someyah Malekian
Intense Israeli strikes in Gaza City continue
Intense Israel Defense Forces strikes on Gaza City continued overnight, despite initial expectations among Palestinian residents of a decrease in military activity following the latest developments from U.S. President Donald Trump's ceasefire proposal.
One of the IDF's targets during the overnight attacks was Al-Azhar University, located in the Al-Mughraqa area in southern Gaza City. The university was "completely destroyed," according to local journalists and eyewitnesses. ABC News has contacted the IDF for comment on the strike.
According to a statement from the Gaza Government Media Office on Saturday night, the IDF carried out 93 airstrikes within 24 hours, killing 70 Palestinians.
-ABC News' Samy Zyara and Somayeh Malekian