President Joe Biden and French President Emmanuel Macron welcomed the rescue of the hostages at a press briefing Saturday.

Biden welcomed the safe return of four hostages from Gaza, pledging that the United States will not stop working until all hostages are home.

"I want to echo President Macron’s comments welcoming the safe rescue of four hostages that were returned to their families in Israel. We won't stop working until all the hostages come home and a ceasefire is reached. That is essential to happen,” Biden said.

President Macron spoke before President Biden, also celebrating the news.

“In Gaza, we want to attain the immediate liberation of hostages and we can only welcome the liberation of four hostages by the Israeli army. We want to achieve the immediate ceasefire and open up the prospect of a political solution which is the only one that can bring about a fair and lasting peace and meet the security of concerns of both people,” Macron said.

“And that is why we are supporting the comprehensive proposal of the United States of America,” he added, calling on Israel to do more to assist humanitarian aid to Rafah, calling the situation “unacceptable.”

-ABC News’ Molly Nagle and Michelle Stoddart

At least 150 Palestinians were killed in Israeli bombing targeting Nuseirat, in central Gaza, Saturday, according the Ministry of Health.

One video verified by ABC News shows about a dozen bodies lying on the street, covered in blood and surrounded by rubble.

Others show people fleeing Nuseirat market as smoke fills the background, and people arriving at the hospital in droves, carrying wounded people and children.

Al Aqsa Martyrs Hospital says it received 55 bodies Saturday amid the Israeli raid on central Gaza, calling on people to come to donate blood, according to a spokesperson.

The hospital is overcrowded and cannot accommodate any more injured people, it said.

“We call on the international community and UN organizations to intervene to stop this brutal aggression,” the hospital said in a statement.

-ABC News’s Victoria Beaule

At least 47 Palestinians have been killed and dozens others were wounded in Central Gaza Saturday amid ongoing Israeli raids in Nuseirat, according to the Hamas-run Gaza Health Ministry.

A number of victims are still under the rubble and on the roads, with ambulance and civil defense crews unable to reach them.

"The occupation forces penetrating into the Central Governorate are committing a massacre against citizens in the Nuseirat camp, as a result of which many martyrs and wounded were transported to Al-Aqsa Martyrs Hospital," the Health Ministry said.

At least 36,801 Palestinians have been killed and 83,680 have been wounded since Oct. 7, according to the Gaza Health Ministry.

Videos obtained by ABC News from the hospital show dozens of people being brought in and lining the floors of the Al Aqsa Martyrs Hospital.

-ABC News' Samy Zyara and Nasser Atta

The United States is doubling down efforts to reach a cease-fire deal as pressure mounts on Israeli Prime Minister Netanyahu.

Secretary of State Antony Blinken is traveling to Egypt, Israel, Jordan, and Qatar this week to discuss a cease-fire agreement that secures the release of all hostages, according to the State Department’s announcement Friday.

While Blinken traveling to the region should not be seen as a marker of further progress in reaching a deal, he will be putting pressure on the respective countries’ officials when he’s there.

A U.S. official told ABC News the intelligence that the U.S. provided to Israel in the latest hostage rescue operation was related to "support with locating individuals."

Currently, there are five American hostages the U.S. believes are still living and three that the U.S. has confirmed are deceased.

The White House is not commenting on the resignation of Centrist Israeli minister Benny Gantz on Sunday, as they don’t comment on domestic Israeli politics.

-ABC News' Selina Weng