DEIR AL-BALAH, Gaza Strip — New details of the Gaza ceasefire proposal emerged on Sunday as Israel sent a negotiating team to Qatar ahead of Prime Minister Benjamin Netanyahu’s White House visit for talks toward an agreement.

Inside the territory, hospital officials said Israeli airstrikes killed at least 38 Palestinians.

“There are 20 hostages that are alive, 30 dead. I am determined, we are determined, to bring them all back,” Netanyahu said before departing, emphasizing the goal of eliminating Hamas’ military and governing power. “And we will also be determined to ensure that Gaza will no longer pose a threat to Israel.”

A person familiar with the negotiations shared with The Associated Press a copy of the latest ceasefire proposal submitted by mediators to Iran-backed Hamas, and its veracity was confirmed by two other people familiar with the document. All three spoke on condition of anonymity because they were not authorized to discuss the talks with the media.

The document outlines plans for a 60-day ceasefire during which Hamas would hand over 10 living and 18 dead hostages, Israeli forces would withdraw to a buffer zone along Gaza’s borders with Israel and Egypt, and significant amounts of aid would be brought in. The document says the aid would be distributed by United Nations agencies and the Palestinian Red Crescent. It does not specify what would happen to the Gaza Humanitarian Foundation, the American organization that has distributed food aid since May. Israel wants it to replace the U.N.-coordinated system.

As in previous ceasefire agreements, Palestinian prisoners held in Israeli facilities would be released in exchange for the hostages, but the number is not yet agreed upon.

The proposal stops short of guaranteeing a permanent end to the war — a condition demanded by Hamas — but says negotiations for a permanent ceasefire would take place during the 60 days. During that time, “President (Donald) Trump guarantees Israel’s adherence” to halting military operations, the document says, adding that Trump “will personally announce the ceasefire agreement.”

The personal guarantee by Trump appeared to be an attempt to reassure Hamas that Israel would not unilaterally resume fighting as it did in March during a previous ceasefire, when talks to extend it appeared to stall.

Trump said last week that Israel had agreed on terms for a 60-day ceasefire, but it was unclear if the terms were those in the document reviewed by the AP. Hamas has requested some changes but has not specified them.

Separately, an Israeli official said the security Cabinet late Saturday approved sending aid into northern Gaza, where civilians suffer from acute food shortages. The official, speaking on condition of anonymity because they were not authorized to discuss the decision, declined to give more details.

Northern Gaza has seen just a trickle of aid enter since Israel ended the latest ceasefire in March. The Gaza Humanitarian Foundation’s closest distribution site is near the Netzarim corridor south of Gaza City that separates the territory’s north and south.

Israeli strikes hit two houses in Gaza City, killing 20 Palestinians and wounding 25 others, according to Mohammed Abu Selmia, director of Shifa Hospital, which serves the area.

Israel’s military said it struck several Hamas fighters in two locations in the area of Gaza City.

In southern Gaza, Israeli strikes killed 18 Palestinians in Muwasi on the Mediterranean Coast, where thousands of displaced people live in tents, said officials at Nasser Hospital in nearby Khan Younis.

Israel’s military had no immediate comment on those strikes but said it struck 130 targets across Gaza in the past 24 hours.

It claimed it targeted Hamas structures, and that they killed militants in northern Gaza.

For Netanyahu, the meeting with Trump on Monday will serve as a kind of victory lap after the joint Israeli-U.S. assault last month on Iran’s nuclear facilities.

The White House visit — the prime minister’s third since Trump returned to office — is likely to add luster to Netanyahu’s laurels, especially with his voters back home, analysts said, as he soon heads into an election year.

The last time Netanyahu was in the Oval Office, in April, he sat somewhat awkwardly at Trump’s side as the president announced that Washington would be engaging in “direct” talks with Iran in a last-ditch effort to rein in the country’s nuclear program. That month, Netanyahu tried to convince Trump that the time was right for a military assault on Iran, but he was swatted down.

This time, Trump is eager to advance a ceasefire deal for the Gaza Strip. The U.S. also said it was brokering talks between Israel and Syria aimed at restoring calm along their frontier.

Then there is the unfinished business with Iran, given the varying assessments of how far Israel’s 12-day assault and the U.S. intervention set back Iran’s nuclear weapons program, and the possibility of renewed negotiations on a nuclear agreement.

In remarks before boarding his plane to Washington on Sunday, Netanyahu said he would thank Trump for his support for Israel. “Our joint mobilization brought us a great victory over our joint enemy, Iran,” he said.

The trip also allows Netanyahu to postpone his cross-examination in his corruption trial. Israeli courts go on summer recess from July 21 until early September.

The New York Times contributed.