The World Health Organization accused Israel today of impeding rescue missions around the Nasser Hospital complex in southern Gaza.

"Weak and frail patients were transferred amidst active conflict near the aid convoy," the WHO said in a statement. The hospital has no electricity or water, it added, and medical waste and garbage there are "creating a breeding ground for disease."

The WHO said the hospital area is surrounded by destroyed buildings, and the lack of any intact roads forces medical teams to reach the facility by foot. Hospital staff said the destruction was "indescribable."

The IDF said on Sunday that it had found weapons in the medical complex and arrested suspected terrorists there.

NBC News has obtained the draft U.N. Security Council resolution that the U.S. is circulating as an alternative to the resolution it vetoed today.

The draft resolution does not call for an immediate cease-fire; instead, it calls for a temporary cease-fire as part of the ongoing hostage negotiations.

In addition, the draft says, a major ground offensive into Rafah “should not proceed under current circumstances,” because it “would result in further harm to civilians and their further displacement including potentially into neighboring countries, which would have serious implications for regional peace and security.”

This draft is being offered as an alternative to the Algerian resolution that failed today, after a U.S. veto. That resolution called for an immediate humanitarian cease-fire, but Linda Thomas-Greenfield, U.S. ambassador to the U.N., called the vote on the Algerian proposal "wishful and irresponsible."

She told members of the Security Council that the rejected proposal would have put "sensitive negotiations" in jeopardy without forging a path for durable peace or ensuring the release of hostages.

Deliveries of lifesaving food aid to northern Gaza will be paused until conditions in the enclave allow for safe distribution, the U.N. World Food Programme said in a statement today.

“The decision to pause deliveries to the north of the Gaza Strip has not been taken lightly, as we know it means the situation there will deteriorate further and more people risk dying of hunger,” the statement said.

In a statement, Gaza's government urged the WFP to reverse its decision, calling it "a death sentence for three quarters of a million people."

The statement also called on all United Nations institutions to resume work in Gaza "instead of disavowing and escaping their international responsibilities and mandates that must be implemented."

A report form the Global Nutrition Cluster found that more than 15% of children under 2 are malnourished in northern Gaza, and 3% are suffering from "severe wasting," based on data collected last month. The World Health Organization said the situation is "likely to be even graver today."

As Gaza faces increasingly dire food and water shortages, U.N. agencies warned in a joint assessment that preventable child deaths could explode in the enclave, which is "on the brink of a nutrition crisis."

"Children’s nutrition will continue to plummet, leading to preventable deaths or health issues which will affect the children of Gaza for the rest of their lives," said Ted Chaiban, UNICEF's deputy executive director for humanitarian action and supply operations.

At least 90% of children under age 5 are suffering from one or more infectious diseases, and the limited food they can access is of "the lowest nutritional value," according to the U.N. agencies.

"Hunger and disease are a deadly combination,” said Mike Ryan, executive director of the WHO’s Health Emergencies Program.

At least 575 Israel Defense Forces soldiers have been killed since Oct. 7, according to Elyon Levy, the prime minister's spokesperson.

"That's up by one since our last update," he said during his briefing today.

Staff Sgt. Maoz Morel died yesterday after being injured in battle last week in southern Gaza.

Since Israel's ground invasion of Gaza began, at least 237 IDF soldiers have died.

A cease-fire resolution proposed by Algeria was blocked at the Security Council meeting after the U.S. used its veto.

It was the third time the U.S. has blocked a cease-fire resolution since the start of the war. But this time, the U.S. said it would offer a different proposal for a vote. Ambassador Linda Thomas-Greenfield defended the decision to the rest of the council members, saying the Algerian resolution would not bring about durable peace or secure the release of hostages.

"Sometimes hard diplomacy takes more time than any of us might like,” she said. “Any action this Council takes should help and not hinder these sensitive ongoing negotiations.”

Brett McGurk, President Joe Biden's top Middle East adviser, is slated to visit Israel and Egypt this week. A U.S. official confirmed that his visit will include talks on Israel's possible military operation in Rafah and the efforts to secure the release of the hostages still held by Hamas. 

Miki Zohar, Israel’s culture minister, warned today that if Israel sends troops into Rafah, Gaza’s southernmost city, that would endanger the hostages held there by Hamas.

“It’s clear that we don’t want to put anyone in danger, not a single hostage,” Zohar said in a committee meeting at the Knesset, Israel’s parliament. “But the answer is yes, going into Gaza will endanger the hostages.”

Following the comment, he wrote on X that the only way to reach a deal was “massive military pressure on Hamas.”

Israel's military warned residents to evacuate two neighborhoods in central Gaza today, ahead of a new offensive.

People living in the Alzayton and Turkmen neighborhoods have been asked to “move immediately,” IDF spokesperson Avichay Adraee said today in a post on X in Arabic.

He added that they should go to a "humanitarian area" in Al-Mawasi on the coast in southern Gaza.