Gaza - Hopes rose Wednesday that Israel and Hamas may be inching toward another truce and hostage-release deal in the Gaza siege, following talks in Europe and a visit to Egypt by the head of the Palestinian group.

While some talked of a truce, Israeli attacks continued as Gazan authorities said the death toll in the Palestinian territory had reached 20,000.

Right-wing Israeli Prime Minister Benjamin Netanyahu claimed there can be no Gaza ceasefire until Hamas militants are destroyed, but the White House expressed hope that the truce talks can bring results.

"These are very serious discussions and negotiations and we hope that they lead somewhere," National Security Council spokesperson John Kirby told reporters.

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Kirby's comments came shortly after Netanyahu, under pressure from Washington and other allies over civilian casualties, reiterated his stated goal of destroying Hamas and said there will be no ceasefire until that is accomplished.

"We won't stop fighting until we've achieved all the objectives we've set ourselves: the elimination of Hamas, the release of our hostages, and the end of the threat from Gaza," Netanyahu repeated.

Late Tuesday, he had told relatives of some of the remaining 129 captives held in Gaza that his spy chief was working on efforts to free them. He said he had "just sent the head of Mossad to Europe twice to promote a process to free our hostages."

The bloody assault on Gaza began when Hamas attacked southern Israel on October 7, killing around 1,140 people in Israel, mostly civilians, and abducting about 250, according to the Israeli government. The move came as Palestinians have suffered decades of colonial occupation by Israel.

In response, Israel began a relentless bombardment alongside a ground invasion. Most of those killed in Gaza have been women and children.

Netanyahu has faced protests from hostage relatives seeking an urgent deal to free the captives.

"Every moment the hostages are there, is danger. They have no time," Ofir Engel (17), a Dutch-Israeli former captive, said at a press conference.

Mossad director David Barnea held a "positive meeting" in Warsaw this week with CIA chief Bill Burns and Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani, a source familiar with the talks told AFP, asking not to be named.

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Talks were ongoing "with the aim of reaching an agreement around the release of the remaining hostages in Gaza in exchange for a truce and the potential release of Palestinians held in Israeli prisons," said the source.

Qatar, backed by Egypt and the United States, last month helped broker a first week-long truce in which 80 Israeli hostages were freed in exchange for 240 Palestinian political prisoners.

The Qatar-based chief of Hamas, Ismail Haniyeh, on Wednesday arrived in Egypt for talks with intelligence chief Abbas Kamel.

A Hamas official, speaking Wednesday on condition of anonymity, told AFP in Gaza that "a total ceasefire and a retreat of the Israeli occupation army from the Gaza Strip are a precondition for any serious negotiation" on a hostage swap.

A source close to Hamas earlier said the Egypt talks would focus on proposals including a week-long truce that would see the release of 40 Israeli hostages.

Before leaving Qatar, Haniyeh met Iranian Foreign Minister Hossein Amir-Abdollahian, but no details were released.

In Rafah, where fireballs and black smoke rose after explosions, residents expressed hope that talks would succeed.

"I wish for a complete ceasefire, and to put an end to the series of death and suffering. It's been more than 75 days," said Kassem Shurrab (25).

Bassil Khoder (63) said a ceasefire would allow displaced Palestinians like him to return home, but it would also be good for Israelis. "The Jews are also our neighbors," he said. "We won't give up on them."

An AFPTV live camera on Wednesday filmed two bombs hitting Rafah, in southern Gaza, where many of the territory's estimated 1.9 million displaced have fled.

The Gazan health ministry said Israeli strikes killed at least 12 Palestinians when houses and a mosque in Rafah "were targeted."

Crowds swarmed the rubble, digging with shovels and a backhoe to try to free the victims. One body, blackened and open-mouthed, lay under a bright blue blanket on the blood-soaked ground.

"Enough, enough of this. We have lost everything and we can't take it anymore," Samar Abu Luli, a woman in Rafah, said after Israeli strikes on the city's Al-Shabura neighborhood.

The Israeli army reported close-quarter combat and more than 300 strikes over the past day, while the death toll among its own forces rose to 134 inside Gaza.

It said "ground, aerial and naval operations were carried out on dozens" of militants and their infrastructure including rocket launch sites and military command and control centers in Khan Yunis, southern Gaza. They also found underground infrastructure "with water and electricity systems" during a raid on residences of senior Hamas figures in Khan Yunis, the military said.

The United Nations Security Council was due to vote Wednesday on a much-delayed resolution calling for a pause to the war after members wrangled over wording. The latest version of the text seen by AFP calls for the "urgent suspension" of hostilities.

The United States vetoed a previous ceasefire resolution.

The UN's World Food Progamme said Wednesday it had delivered food through the Kerem Shalom crossing in a first direct aid convoy from Jordan as "millions face the risk of starvation."

Fuel, water, and medical supplies are also scarce, diseases are spreading, and communications have been repeatedly cut.

An Israeli military agency, COGAT, said it had started laying a pipeline from Egypt to deliver drinking water from a mobile desalination plant in a project led by the United Arab Emirates.

Visiting nearby Cyprus on Wednesday, Israeli Foreign Minister Eli Cohen expressed support for plans to send humanitarian aid to Gaza from the Mediterranean island.

"We aim to create a fast track for humanitarian aid to Gaza through this corridor," he told reporters.

The Gaza war has sparked fears of regional escalation, with exchanges of fire over the Lebanon border, and missiles from Yemen's Houthis disrupting Red Sea shipping.