Security officials from Egypt, the United States and Qatar will meet in Doha on Wednesday to look at ways to revive the Gaza truce negotiations, a senior Egyptian official told Egyptian state media.

Hamas rejected the Israeli cease-fire plan endorsed by President Joe Biden on Tuesday, saying they won't agree to anything until Israel commits to halting all military operations in Gaza.

-ABC News' Ayat Al-Tawy

World Central Kitchen has now served 50 million meals in Gaza, the organization announced during a press briefing Tuesday.

"I'd like to announce that we have just crossed the 50 million meal mark in Gaza. That is a huge accomplishment for us. We're about 50,100,000 right now. As many of you know, we had to pause our work in Gaza after the Israeli attack on our personnel convoy on April 1, which killed seven of our colleagues," World Central Kitchen Chief Communications Officer Linda Roth said during the press conference.

"Jose, our founder, says the decision to restart feeding in Gaza was both the hardest and the simplest one we could make," Roth said.

Right now, the organization has two main World Central Kitchen kitchens operating in Gaza in Deir al Balah and Mawasi, and "another 65 community kitchens spread throughout the strip," Roth said.

"We have about 400 Palestinian Response Corps members and hundreds and hundreds of more volunteers that are working to feed everyone in Gaza. It's Palestinians feeding Palestinians," Roth said.

-ABC News Guy Davies and Nadine Shubailat

The Israel Defense Forces say things have reached a breaking point along its border with Lebanon, where there has been an exchange of attacks between Israel and Hezbollah for months.

"We are approaching the point where a decision will have to be made, and the IDF is prepared and very ready for this decision. We have been striking here for eight months and Hezbollah is paying a very, very high price," Herzi Halevi, a spokesperson for the IDF, said Tuesday.

"Hezbollah has increased its attacks in recent days and we are prepared after a very good process of training up to the level of a General Staff exercise to move to an offensive in the north. Strong defense, readiness for an offensive, we are approaching a decision point," the IDF said.

-ABC News' Will Gretsky

The current cease-fire proposal has majority support in the Knesset, Israeli parliament, according to Israeli opposition leader Yair Lapid.

"There is a large and clear majority in the government, the Knesset and the public in favor of a deal," Lapid said.

-ABC News' Will Gretsky

Israeli forces confirmed the deaths of four more hostages: Haim Peri, Yoram Metzger, Amiram Cooper and Nadav Popplewell.

IDF spokesman Daniel Hagari said the four hostages were "killed together" a "few months ago" while "IDF forces were operating" in Khan Younis in southern Gaza. Hagari said Israeli forces are "examining the circumstances" of their deaths.

Cooper, 85, was an economist and a poet, and a father of four and grandfather of 11, according to Kibbutz Nir Oz. His wife, Nurit Cooper, was also kidnapped and later released, the kibbutz said.

Metzger, 80, was a father of three and grandfather of seven. His wife, Tamar Metzger, was also abducted to Gaza and later released, the kibbutz said.

Popplewell, 51, was kidnapped with his mother, who has been released, the Hostages Families Forum said.

Peri, 80, was abducted while protecting his wife, the Hostages Families Forum said. He leaves behind his wife, five children and 13 grandchildren.

Peri's family said he "heroically survived in the Hamas tunnels, under inhumane conditions, for around 4 months," and he "survived with the hope and faith that the state of Israel will fulfill its moral duty to bring him home."

"The government of Israel and its Prime Minister have no right to leave the hostages in captivity, dismantling Israel’s foundational principle of mutual responsibility," Peri's family said. "We call upon the government of Israel to strive for an immediate deal, save those still alive, and bring those who are not, to a proper burial."

"The heartbreak that comes with this painful news should shake every citizen in the State of Israel and lead every leader to profound soul-searching," the Hostages Families Forum said in a statement Monday. "The Israeli government must send out a negotiating delegation this evening and return all 124 hostages, both living and murdered. ... We reiterate our demand to the Israeli government: approve the Netanyahu deal immediately!"