Egyptian president Abdel Fattah al-Sisi and his US counterpart Donald Trump will on Monday chair a Gaza peace summit in Sharm el-Sheikh, the Egyptian presidency said on Saturday.
More than 20 countries are expected to participate in the gathering, which aims to galvanise international support for Trump's 20-point plan to end the war in Gaza and reconstruct the territory under a new Palestinian administration.
The meeting will take place in the Red Sea resort town on Monday afternoon.
UN Secretary-General Antonio Guterres said he will attend, alongside leaders or foreign ministers from Arab and European countries.
Britain's Prime Minister Keir Starmer, his Italian counterpart Giorgia Meloni, Pedro Sanchez of Spain, and French President Emmanuel Macron have confirmed their attendance.
Qatar, the UAE, Jordan, Turkey, Saudi Arabia, Bahrain, Kuwait, Pakistan and Indonesia will also be present, as will India, Canada and Japan, among others.
Neither Hamas nor Israel will attend.
The gathering is being arranged just a few days after mediators brokered a ceasefire and captive-prisoner swap agreement to end Israel's genocidal assault on Gaza.
Hamas has agreed to free the Israeli captives still being held in Gaza in return for the release of around 2,000 Palestinian prisoners and a partial withdrawal of Israeli forces.
The ceasefire was brokered during four days of high-stakes negotiations led by Qatar, Egypt, Turkey and US officials Steve Witkoff and Jared Kushner.
The Palestinian armed group is expected to begin releasing the living captives on Monday and the deceased when it has located their remains.
The Israeli military has pulled back to the agreed withdrawal line, which encompasses more than half of Gaza. Further pullbacks will be conditioned on Hamas agreeing to Israel's more contentious demands, which include the group's disarmament and the demilitarisation of the strip.
Thousands of Palestinians have begun travelling back to what remains of their homes in northern Gaza.
On Saturday, three Qatari diplomats were killed and two others wounded in a car crash in Sharm el-Sheikh.
(AFP contributed towards this report)