Israel has continued its air strikes on Gaza after Prime Minister Benjamin Netanyahu vowed to ramp up the pressure on the militant group Hamas as hopes faded for a US-announced ceasefire plan.
Hamas political leader Ismail Haniyeh accused Israel of deliberately undermining negotiations for a truce and hostage release deal because it did not want to end the war.
The Israeli military said it had carried out 25 strikes in 24 hours, targeting "military structures, terrorist infrastructure, terrorist cells and rigged structures".
Mr Netanyahu, who has repeatedly vowed to eradicate Hamas, insisted that despite mounting pressure, there would be no let-up in Israel's campaign against the militants.
"This is exactly the time to increase the pressure even more, to bring home all the hostages - the living and the dead - and to achieve all the war objectives," he said.
In a speech to parliament, Mr Netanyahu added: "We have got them by the throat; we are on the road to absolute victory".
The health ministry in Hamas-ruled Gaza said that 52 people, most of them women and children, had been killed in Israeli strikes over the previous 24 hours.
The United Nations humanitarian office OCHA said multiple strikes across Gaza yesterday killed and wounded dozens.
The territory's civil defence agency said that 30 people had died in three strikes on Nuseirat refugee camp in central Gaza - on a UN-run school, a house and a mosque.
In southern Gaza, two people were killed in Israeli bombardment of the Shakush area, northwest of Rafah, a medical source at Nasser Hospital said.
At least 90% of Gazans have been forced from their homes, many of them seeking refuge in UN-run schools. Seven of these buildings have been hit by Israeli strikes since 6 July.
Nearly 70% of UN-run schools across Gaza have been hit during more than nine months of fighting, the UN agency for Palestinian refugees (UNRWA) said.
"Why do they target us when we are innocent people?" asked Umm Mohammed al-Hasanat, sheltering with her family at a UN-run school in Nuseirat, which was among those hit.
"We do not carry weapons but are just sitting and trying to find safety for ourselves and our children."
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The United States has been pushing for a ceasefire between Israel and Hamas since President Joe Biden released details of what he said was an Israeli truce roadmap on 31 May.
But despite the efforts of Egyptian and Qatari mediators, indirect negotiations between the enemies have made no headway.
In a telephone call with Turkish Foreign Minister Hakan Fidan, the Hamas leader blamed Israel for the deadlock.
"We dealt positively with the proposals put to us by the mediators but the occupation is avoiding the required outcome and does not want to reach an agreement under which it ends its war," Mr Haniyeh said.
His comments came after a senior Hamas official said on Sunday that the group was withdrawing from the talks following Israel's deadly strikes but was ready to return if its attitude changes.
The war began with Hamas's unprecedented 7 October attack on Israel which resulted in the deaths of 1,195 people, mostly civilians, according to a tally based on Israeli figures.
The militants also seized 251 hostages, 116 of whom are still in Gaza, including 42 the Israeli military says are dead.
Israel responded with a military offensive that has killed at least 38,794 people, also mostly civilians, according to figures from the Gaza health ministry.
The war has devastated the coastal territory and left Gazans suffering shortages of food, medicines and basic goods.
The World Health Organization's representative in Gaza and the occupied West Bank, Rik Peeperkorn, said that only 16 aid trucks had entered the enclave via the Kerem Shalom border crossing during the last month, while dozens of lorries were still waiting to do so.
The main crossing point for aid, Rafah, which connects Gaza with Egypt, has been closed for months since Israel sent ground troops into the city.
The WHO also said that out of the territory's 36 hospitals, only 15 were partially functioning and that there had been more than 1,000 attacks against health facilities in Gaza since October.
Critics in Israel, including tens of thousands of demonstrators who have taken to the streets to demand a deal to bring home the hostages, have accused Mr Netanyahu of prolonging the war.
The families of five Israeli women soldiers among the hostages said they were "begging" the prime minister to "make the deal happen".
"We are waiting for a face-to-face meeting with you (Benjamin Netanyahu) to ensure that the negotiations are moving towards a signed deal," said Ayelet Levy, whose daughter was abducted on 7 October.
Meanwhile, Human Rights Watch (HRW), which has repeatedly accused Israel's military of war crimes during its campaign in Gaza, issued a report accusing Hamas' military wing, the Qassam Brigades, and at least four other Palestinian armed groups of committing "numerous war crimes and crimes against humanity" during the October assault.
These included "deliberate and indiscriminate attacks" against civilians, inhumane treatment and wilful killing of captives, sexual and gender-based violence, hostage taking, mutilation of bodies, use of human shields and looting.
The findings, based on interviews with survivors, rescue workers and others, echo other accounts and largely match those of a UN inquiry last month, which concluded that both Israel and Hamas committed war crimes in the early stages of the Gaza war.
Hamas rejected the report as containing "lies and blatant bias" and demanded HRW withdraw it and apologise.
"The Human Rights Watch report adopted the entire Israeli narrative," Hamas said in a statement.
