Cairo, Aug 25 : Egypt, Qatar and the US continued to try to broker a truce in the Israel-Hamas war amid ongoing Israeli artillery fire and air strikes across the Gaza Strip.

An overnight strike on Friday to Saturday on a house west of Khan Younis in southern Gaza killed 11 people, a doctor at Nasser Hospital said.

Negotiators geared up for a crucial weekend of Gaza ceasefire talks on Saturday, as Hamas said it was sending delegates to Cairo but would not participate in the discussions, and fighting raged in the Palestinian territory.

The war, sparked by Hamas's unprecedented October 7 attack on Israel, has devastated Gaza, displaced nearly all of its population at least once and triggered a humanitarian crisis.

The White House said progress had been made at the latest round this week, although the possible permanent presence of Israeli troops along the Gaza-Egypt border has emerged as a major sticking point.

Previous bouts of optimism during months of on-off ceasefire and hostage release negotiations have always proven unfounded.

A senior Hamas official said a delegation from the Islamist group was heading to Cairo, but that they would not engage in the talks. Instead, they would meet with senior Egyptian officials for updates on the negotiations.

The official said Hamas would insist Israel withdraw all its forces from all of Gaza, including "from the border area with Egypt," known as the Philadelphi Corridor.

The basis of the talks is a framework which US President Joe Biden outlined on May 31, and which he described as an Israeli proposal.

A second Hamas official on Saturday reiterated that "the leadership of Hamas, including its leader Yahya Sinwar" had already agreed to the Biden plan and wanted it put into effect without "amendment of its wording".

The three-phase plan outlined by Biden and endorsed by the UN Security Council would initially see hostages exchanged for Palestinians in Israeli jails during what Biden called a "full and complete ceasefire" lasting six weeks.

Israeli Prime Minister Benjamin Netanyahu has since insisted on keeping troops along the corridor, arguing Israel needs to prevent Hamas from rebuilding its strength by smuggling in arms from Egypt.

The White House said CIA chief William Burns was among US officials taking part in the Cairo talks, alongside the heads of Israel's spy agency and domestic security service.

An Egyptian source close to the talks said the US was "discussing with mediators new proposals to bridge the gap between Israel and Hamas".

The source said that Sunday's "enlarged round of negotiations" would be a "pivotal step in formulating an agreement that will be announced if Washington can pressure Netanyahu".

The military announced the deaths of three soldiers in fighting in central Gaza on Friday, all of them non-commissioned officers.

The latest deaths bring the military's losses in the Gaza campaign to 338 since it launched a ground offensive in the Palestinian territory on October 27.

Tens of thousands of civilians were on the move from Deir el-Balah and Khan Younis after Israeli evacuation orders, which precede military operations, the United Nations said on Thursday.

Israel's retaliatory military campaign has killed 40,334 Palestinians in Gaza, according to Gaza's Health Ministry, which does not give details of civilian and militant deaths.

The UN Rights Office says most of the dead are women and children.

Palestinian militants also seized 251 hostages, of whom 105 remain in Gaza, including 34 the military says are dead.

Israel's military recovered the remains of six hostages from a tunnel in the Khan Younis area this week and said bullets were found in their bodies.

Thousands protested in Tel Aviv and other Israeli cities ahead of Sunday's talks, calling for a deal to secure the release of the remaining hostages.

Efforts to reach a Gaza truce and avert a wider war intensified after the killings of two senior Iran-backed militants last month sparked threats of reprisals from Tehran and its Lebanese ally Hezbollah.

Gazans said they were desperate for an end to the war.

/IANS