The construction of a new port in Gaza and an accompanying U.S. military-built pier offshore are underway, but the complex plan to bring more desperately needed food to Palestinian civilians is still mired in fears over security and how the humanitarian aid will be delivered.

The Israeli-developed port, for example, has already been attacked by mortar fire, sending high-ranking U.N. officials scrambling for shelter this week, and there is still no solid decision on when the aid deliveries will actually begin.

Egypt sent a high-level delegation to Israel on Friday with the hope of brokering a cease-fire agreement with Hamas in Gaza, two officials said. At the same time, it warned that a possible Israeli offensive focused on Gaza's city of Rafah — on the border with Egypt — could have catastrophic consequences for regional stability.

Egypt's top intelligence official, Abbas Kamel, is leading the delegation and plans to discuss with Israel a "new vision" for a prolonged cease-fire in Gaza, an Egyptian official said, speaking on condition of anonymity to discuss the mission freely.

Palestinians mourned people killed in Israeli bombardment of Rafah, the crowded southern Gaza city where Israel says it is advancing plans for a ground invasion.

Global concern has mounted over the looming operation against Hamas militants in Rafah, where much of Gaza's population has sought refuge from more than six months of war.

The leaders of the United States, Britain, France and more than a dozen other countries called in a joint statement Thursday for Hamas to release the scores of hostages it is holding, the White House said.

"We call for the immediate release of all hostages held by Hamas in Gaza for over 200 days. They include our own citizens," the leaders said.

An under-construction pier for a U.S.-led project to bring aid into the Gaza Strip has come under fire, forcing U.N. officials to take shelter there, Israeli and U.N. officials said.

No militant group immediately claimed responsibility for the assault, which the Israelis described as a mortar shell attack.

A memorial at the National Cathedral in Washington on Thursday will honor the seven World Central Kitchen aid workers killed by Israeli airstrikes in Gaza earlier this month.

José Andrés, the celebrity chef and philanthropist behind the Washington-based World Central Kitchen disaster relief group, is expected to speak at the celebration of life service, and famed cellist Yo-Yo Ma will perform, organizers said.

Hamas released a hostage video on Wednesday showing a well-known Israeli-American man who was among scores of people abducted by the militants in the attack that ignited the war in Gaza.

The video was the first sign of life of Hersh Goldberg-Polin since Hamas' Oct. 7 attack on southern Israel, and its release ignited new protests in Jerusalem calling on the government to do more to secure the captives' release.

A top Hamas political official told The Associated Press the Islamic militant group is willing to agree to a truce of five years or more with Israel and that it would lay down its weapons and convert into a political party if an independent Palestinian state is established along pre-1967 borders.

The comments by Khalil al-Hayya in an interview Wednesday came amid a stalemate in months of talks for a cease-fire in Gaza. The suggestion that Hamas would disarm appeared to be a significant concession by the militant group officially committed to Israel's destruction.

US-led coalition forces shot down four drones and an anti-ship missile launched by Yemen's Houthi rebels, American authorities said Thursday, as the Iran-backed group announced strikes against U.S. and Israeli ships.

A Greek vessel deployed in the Gulf of Aden as part of an EU naval coalition also shot down a drone off Yemen's coast early on Thursday, the Greece general staff said in a statement.

The head of the Arab League on Wednesday hailed the conclusion of an independent review of the neutrality of the U.N. relief agency for Palestinians.

Secretary-General Ahmed Aboul Gheit said the wide-ranging 48-page report by the independent panel showed that Israel’s allegations were baseless and part of a "systematic campaign” meant to end the mandate of the agency, known as UNRWA.