"We now find ourselves in a situation I would have to describe as hell on earth," Spoljaric told Reuters from the ICRC's Geneva headquarters. "People have no access to water, electricity, or food in many areas."

Spoljaric added that the ICRC had not received any supplies in besieged Gaza for six weeks, warning that the organization’s field hospital would soon run out of critical items.

"Within two weeks, we will run out of the supplies we need to keep the hospital running," she said.

At the same time, the World Health Organization (WHO) has warned that medical supplies are scarce. Speaking to reporters in Geneva via video link in Jerusalem, WHO representative Richard Peeperkorn stressed that 22 of Gaza's 36 hospitals are operating at minimal capacity, with critical shortages of antibiotics and blood bags.

Israel reinforced its deadly blockade on the strip on 2 March, barring the entry of nutritional, medical, and humanitarian aid.

The move has exacerbated already severe shortages, driven up prices and deepened what aid agencies warn is a fast-accelerating famine in parts of the territory.

The humanitarian crisis has grown steadily worse over recent weeks.

The genocidal Israeli war on Gaza has displaced over 90 percent of the strip's native Palestinian population from their homes multiple times, with many living in makeshift shelters.

Hospitals are experiencing a total breakdown in basic services. Spoljaric also highlighted the extreme dangers faced by humanitarian workers.

"Moving people is extremely dangerous, but it is particularly dangerous for our work," she said, underscoring the risks for aid teams operating in the area.

The toll of Israel's genocidal war on Gaza has been devastating.

With tens of billions of dollars in arms supplied by the US, Israel has killed at least 50,886 people and wounded more than 115,875, the majority of them women and children.

Since 18 March, Israeli airstrikes in Gaza have killed more than 1,500 Palestinians and wounded hundreds after PM Benjamin Netanyahu unilaterally ended a two-month truce with Hamas to resume the war on the strip.

In tandem, relentless Israeli bombardment has destroyed 72 percent of homes and most of Gaza's schools and hospitals, according to local authorities, leading to the displacement of over 90 percent of Gaza's population.

Thousands of Palestinians remain buried under the rubble, with emergency services unable to reach them due to ongoing bombardment. Israeli forces have also targeted ambulance crews and civil defence teams, further complicating rescue efforts.

On Wednesday, the ICRC condemned the Israeli army's killing of eight of its paramedics in Gaza, calling it a stark reminder of the dangers faced by civilians and aid workers.

"Every time a paramedic is killed, a lifeline is cut off for civilians," said Adrian Zimmermann, head of the ICRC's Gaza delegation, in a post published by the organization.

"We continue to feel pain and anger over the killing of Palestine Red Crescent Society paramedics."

The Palestine Red Crescent Society confirmed days earlier that a total of 15 medics and rescuers were killed in the Israeli attack last month, including the eight PRC paramedics, and that they were shot in the upper body with "intent to kill."

The United Nations (UN) has warned that the cumulative impact of Israel's war on Gaza risks destroying "the future viability of Palestinians as a group" in the devastated territory.

Speaking to reporters at the UN headquarters in New York, Secretary-General Antonio Guterres condemned the situation, describing Gaza as "a killing field" amid Israel's blockade of humanitarian aid and its failure to fulfil its obligations to the Palestinian people.

He stressed the responsibility of the "occupying power" to ensure the delivery of food and medical supplies. "None of that is happening today," he said. "No humanitarian supplies can enter Gaza."