Israeli troops have mistakenly shot three hostages to death in a battle-torn neighborhood of Gaza City, and an Israeli strike killed a Palestinian journalist in the south of the besieged territory, underscoring the ferocity of Israel's ongoing onslaught.

The deaths were announced as a U.S. envoy tried to persuade the Israelis to scale back their campaign sooner rather than later.

U.S. Defense Secretary Lloyd Austin has ordered the USS Gerald R. Ford aircraft carrier and one other warship to remain in the Mediterranean Sea for several more weeks to maintain a two-carrier presence near Israel as its war with Hamas grinds on, U.S. officials said.

It would be the third time the Ford's deployment has been extended, underscoring the continued concerns about volatility in the region during Israel's war in Gaza. The U.S. has two aircraft carriers in the region, a rarity in recent years.

An Israeli strike killed a Palestinian camera operator for the TV network Al-Jazeera and wounded its chief Gaza correspondent as they reported at a school in the south of the besieged territory, the network said.

Camera operator Samer Abu Daqqa and correspondent Wael Dahdouh had gone to the school in the southern city of Khan Younis after it was hit by a strike earlier in the day. While they were there, an Israeli drone hit the school with a second strike, the network said.

Israel pressed its offensive in Gaza on Friday despite mounting international calls for restraint, with key backer the United States saying the war to crush Hamas must not lead to a long-term Israeli occupation of the territory.

The war began after Hamas launched an unprecedented attack on Israel on October 7 that Israeli officials say killed about 1,200 people.

U.S. National Security Advisor Jake Sullivan said Friday it is not appropriate for Israel to occupy Gaza in the long-term, as speculation mounts over the post-war future of the territory.

"We do not believe that it makes sense for Israel, or is right for Israel, to occupy Gaza, reoccupy Gaza over the long term," Sullivan told journalists in Tel Aviv.

Israel's defense minister said it will take months to destroy Hamas, predicting a drawn-out war even as his country and its top ally, the United States, face increasing international isolation and alarm over the devastation from the campaign in Gaza.

Yoav Gallant's comments came as U.S. national security adviser Jake Sullivan met with Israeli leaders to discuss a timetable for winding down major combat in Gaza. Israeli leaders repeated their determination to pursue the military assault until they crush the militant group for its Oct. 7 attack.

Israel's president has joined the ranks of high-ranking Israeli officials to speak out against a two-state solution after the war in Gaza.

In an interview with The Associated Press on Thursday, Isaac Herzog said it is not the time to be talking about establishing an independent Palestinian state when the country's pain from Hamas' Oct. 7 attack is still fresh.

A boy, his face coated in fresh blood, screams as rescuers try to pull him out of the rubble of a destroyed building following an Israeli airstrike in Gaza. A bruised, elderly Israeli hostage is taken away by Hamas in a golf cart as a man clutching a machine gun sits behind her, smiling. A 10-year-old girl cries next to the body of her brother as he is buried near Kyiv, Ukraine.

This year as in years past, The Associated Press was there up close to document the world's conflicts and their toll on civilians.

A ballistic missile fired from rebel-held territory in Yemen slammed into a cargo ship Friday in the Red Sea near the strategic Bab el-Mandeb Strait, following another attack only hours earlier that struck a separate vessel, authorities said.

The missile attack on the MSC Palatium III and the earlier assault on the Al Jasrah escalate a maritime campaign attributed to the Iranian-backed Houthi rebels in Yemen. The attacks also endanger ships traveling through a vital corridor for cargo and energy shipments for both Europe and Asia from the Suez Canal out to the Indian Ocean.

The United States national security adviser and the Palestinian president were set Friday to discuss postwar arrangements for Gaza — which, according to a senior U.S. official, could include reactivating Palestinian security forces driven out by Hamas in its 2007 takeover of the territory.

The proposal, floated as one of several, was the first specific indicator of Washington's vision for security arrangements in Gaza if Israel achieves its U.S.-backed objective to end Hamas control of the besieged enclave.