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Egypt will hold a summit on the Israel-Gaza war on Saturday amid growing fears of a wider escalation in the Middle East, but the absence of a top official from Israel's main ally the US and some other leaders has dampened expectations for what it can achieve.

The hastily-convened Cairo Peace Summit, set to be held as Israel's indiscriminate and relentless bombardment still rages in Gaza, will bring together several Arab and European heads of state and government, alongside foreign ministers.

They will meet as Israel readies a ground assault on Gaza following Hamas' unprecedented cross-border attack on October 7. Israel has killed more than 4,100 Palestinians and wounded 13,000 others, amid a deepening humanitarian crisis in the territory, which has been placed under a total siege.

There was no word as of 1400 GMT on who would represent the US, or whether major powers China and Russia would attend.

EgyptÌýhas said little about the aims of the gathering, beyond an October 15 statement by the Egyptian presidency that the summit would cover recent developments involving the crisis in Gaza and the future of the Palestinian issue.

"There is no precise overview of the participants so far. Much is still in flux," said one European source.

German Chancellor Olaf Scholz and British Prime Minister Rishi Sunak will not attend, while there has been no official word on whether French President Emmanuel Macron will go.

A senior EU official said there had been discussions about a common summit declaration but there were still "differences" so it was not clear if there would be a text in the end.

The official said European Council President Charles Michel and EU foreign policy chief Josep Borrell planned to go to Cairo, although they faced a scramble to get there in time as they were both in Washington on Friday for a US-EU summit.

Arab countries have voiced anger at Israel's unprecedented bombardment and siege of Gaza, home to 2.3 million people.

Clashes on Israel's border with Lebanon and attempted attacks by Iranian-backed forces elsewhere have fuelled fears of a spillover, particularly if a ground offensive proves bloody, while growing Islamophobic and antisemitic harassment around the world has raised security concerns in many countries.

European countries have struggled to settle on a united approach to the crisis, beyond condemning Hamas's attack, after days of confusion and mixed messaging.

Egypt has been trying to channel humanitarian relief to Gaza through the Rafah crossing, the one access point not controlled by Israel, but aid has piled up on the Egyptian side.

President Abdel Fattah al-Sisi said on Wednesday Egyptians in their millions would oppose any forced displacement of Palestinians into Sinai, adding that any such move would turn the peninsula into a base for attacks against Israel.

Egypt's position reflects Arab fears that Palestinians could again flee or be forced from their homes en masse, as they were during the Nakba, or catastrophe, triggered by Israel’s creation in 1948.

Jordan's King Abdullah and Sisi both said on Thursday that Palestinians should not be forcibly displaced and that Israel was "imposing collective punishment" on the inhabitants of Gaza by bombing civilians.

Israeli officials, including Prime Minister Benjamin Netanyahu, have said they will wipe out Hamas in retaliation for the attack, and has insisted that it does not target civilians. However, the majority of Palestinians killed by Israel are civilians, including women and children.Ìý

Israel, however, has no obvious endgame in sight, with no clear plan for how to govern the Palestinian enclave afterwards, according to eight regional and Western officials with knowledge of the conflict.

Some of US President Joe Biden's aides are concerned that while Israel has yet to formulate an exit strategy amid the war, a source in Washington familiar with the matter said.

The summit is scheduled to be opened by the Egyptian president at 10 a.m. Saturday (0700 GMT).

(Reuters and °®Âþµº Staff)