The soaring death toll from Israel’s escalating bombardment was unprecedented in the decades-long Israeli-Palestinian conflict.

RAFAH, Gaza Strip: Rapidly expanding Israeli airstrikes across the Gaza Strip killed more than 700 people in the past day as medical facilities across the territory were forced to close because of bombing damage and a lack of power, health officials said Tuesday.

The soaring death toll from Israel’s escalating bombardment was unprecedented in the decades-long Israeli-Palestinian conflict. It could signal an even greater loss of life in Gaza once Israeli ground forces backed by tanks and artillery launch an expected offensive into the territory aimed at crushing Hamas.

Gaza’s 2.3 million people have been under increasing bombardment and running out of food, water and medicine since Israel sealed off the territory following the devastating Oct. 7 attack by Hamas militants on towns in southern Israel.

On Tuesday, Israel said it had launched 400 airstrikes over the past day, killing Hamas commanders, hitting militants as they were preparing to launch rockets into Israel and striking command centers and a Hamas tunnel shaft. The previous day, Israel reported 320 strikes. Witnesses and health officials said many of the airstrikes hit residential buildings, some of them in southern Gaza where Israel had told civilians to take shelter.

An overnight strike hit a four-story residential building in the southern city of Khan Younis, killing at least 32 people and wounding scores of others, according to survivors.

The fatalities included 13 from the Saqallah family, said Ammar al-Butta, a relative who survived the airstrike. He said there were about 100 people there, including many who had come from Gaza City, which Israel has ordered civilians to evacuate.

“They were sheltering at our home because we thought that our area would be safe. But apparently there is no safe place in Gaza,” he said.

Another airstrike hit a bustling marketplace in the Nuseirat refugee camp in central Gaza, killing several shoppers and wounding dozens, witnesses said.

Men used sledgehammers to break up concrete and dug with their bare hands through the jagged wreckage to save anyone they could – or at least recover the dead who had been buying meat and vegetables when the explosion hit.

A man buried up to his chest in rubble looked up at his rescuers with wide eyes, his face coated in dust from the blast. An oxygen mask was placed on his face as they spent 15 minutes working to free him.

Gaza’s Hamas-run Health Ministry said the attacks killed at least 704 people over the past day, including 305 children and 173 women. More than 5,700 Palestinians have been killed in the war, including some 2,300 minors, the ministry said, without giving a detailed breakdown. The figure includes the disputed toll from an explosion at a hospital last week.

Most of the Palestinians killed since Oct. 7 were in the north and central areas of the enclave that Israel had told them evacuate, the ministry said.

The fighting has killed more than 1,400 people in Israel — mostly civilians slain during the initial Hamas attack.

As the death toll in Gaza spiralled, facilities to deal with the casualties were dwindling. A total of 46 out of 72 primary health-care facilities, and 12 out of 35 hospitals, stopped functioning, the World Health Organization said. Palestinian health officials said the lack of electricity and fuel to power generators from the Israeli blockade, as well as damage from airstrikes, has forced many of the facilities to close.

Gaza’s five main hospitals were all filled beyond capacity, it said.

While Israel has allowed a small number of trucks filled with aid to enter, it has barred deliveries of fuel to Gaza.

The rising toll has made it hard for Palestinians to bury the huge numbers of dead, with cemeteries being forced to excavate and reuse old plots and bury up to five bodies in one grave.

“Bodies pour in by the hundreds every day. We use every empty inch in the cemeteries,” said Abdel Rahman Mohamed, a volunteer who helps transfer bodies to Khan Younis’ main cemetery. “Some bodies arrive in pieces in bags. It’s horrible.”

Israel says it does not target civilians and that Hamas militants are using them as cover for their attacks. Palestinian militants have fired over 7,000 rockets at Israel since the start of the war, Israel said, and Hamas said it fired a new barrage Tuesday morning.

“We continue to attack forcefully in Gaza City and its environs, where Hamas is building up its terrorist infrastructure, where Hamas is arraying its troops,” said Israeli military spokesman Rear Adm. Daniel Hagari. He again told Palestinians to head south “for your personal safety.”

The U.N. agency for Palestinian refugees said six of its staff were killed in bombings, bringing to 35 the death toll of its workers since the war started.

Amid fears the fighting to spiral into a wider regional war, French President Emmanuel Macron arrived in Tel Aviv on Tuesday and told top Israeli officials that he came “to express our support and solidarity and share your pain” as well as to assure Israel it is “not left alone in the war against terrorism.”

In a joint news conference with Prime Minister Benjamin Netanyahu, Macron stressed Israel’s right to defend itself, but added that it shouldn’t target civilians and should allow aid to Gaza and electricity for its hospitals.

Netanyahu blamed Hamas for the civilian casualties and said “it could be a long war.”

On Monday, Hamas released two elderly Israeli women who were among the more than 200 people Israel says were taken to Gaza during the attack.

Appearing weak in a wheelchair and speaking softly, 85-year-old Yocheved Lifshitz told reporters Tuesday that the militants beat her with sticks, bruising her ribs and making it hard to breathe as they kidnapped her. They drove her into Gaza, then forced her to walk several kilometers (miles) on wet ground to reach a network of tunnels that looked like a spider web, she said.

Once there, though, her treatment improved, she said. The people assigned to guard her “told us they are people who believe in the Quran and wouldn’t hurt us.” Lifshitz, whose husband remains a hostage, said conditions were kept clean, she received medical care, including medication, and was given the same one meal a day of cheese and cucumber that her captors had.

Lifshitz and 79-year-old Nurit Cooper were freed days after an American woman and her teenage daughter were released. Hamas and other militants in Gaza are believed to have taken roughly 220 people, including an unconfirmed number of foreigners and dual citizens.

The Israeli military later dropped leaflets in Gaza asking Palestinians to reveal information on the hostages’ whereabouts. In exchange, the military promised a reward and protection for the informant’s home.

Israel has vowed to destroy Hamas. Iranian-backed fighters around the region are warning of possible escalation, including the targeting of U.S. forces deployed in the Mideast, if a ground offensive is launched.

The U.S. has told Iranian-backed Hezbollah in Lebanon and other groups not to join the fight. Israel and Hezbollah have traded fire almost daily across the Israel-Lebanon border, and Israeli warplanes have struck targets in Syria, Lebanon and the occupied West Bank in recent days.