Israeli forces backed by fighter jets and drones carried out a second ground raid into Gaza in as many days and struck targets on the outskirts of Gaza City, the military said Friday, as it prepares for a widely expected ground invasion of the Hamas-ruled territory.

US warplanes meanwhile struck targets in eastern Syria that the Pentagon said were linked to Iran's Revolutionary Guard after a string of attacks on US forces by Iran-backed fighters, adding to the already high regional tensions fuelled by the three-week-old Gaza war.

The Palestinian death toll has soared past 7,000 as Israel has carried out waves of devastating airstrikes in response to a bloody Hamas incursion into southern Israel on Oct. 7. The Health Ministry in Gaza, which tracks the toll, released a detailed list of names and ID numbers on Thursday. The toll includes more than 2,900 minors and more than 1,500 women.

More than 1,400 people in Israel, mostly civilians, were slain during the initial Hamas attack, according to the Israeli government. Hamas is holding at least 224 captives inside Gaza, including men, women, children and older adults.

The airstrikes have flattened entire neighbourhoods, causing a level of death and destruction unseen in the last four wars between Israel and Hamas. Over a million people have fled their homes, with many heeding Israeli orders to evacuate to the south, despite continuing Israeli strikes across the sealed-off territory.

The humanitarian crisis sparked by the war and the Israeli siege has sparked protests across the region, and more demonstrations were expected later Friday after weekly Muslim prayers.?

The military said ground forces raided inside Gaza, striking dozens of militant targets over the past 24 hours. It said aircraft and artillery bombed targets in Shijaiyah, a neighbourhood on the outskirts of Gaza City that was the scene of a bloody urban battle in the 2014 Gaza war.?

The military said the soldiers exited the territory without suffering any casualties. It reported an earlier raid into northern Gaza early Thursday, saying ground forces battled militants and struck anti-tank missile firing positions in an operation that lasted hours.

The damage to Gaza from nearly three weeks of bombardment showed in satellite photos of several locations taken before the war and again in recent days.

Entire rows of residential buildings simply disappear in the photos, reduced to smears of dust and rubble. A complex of 13 high-rises by the sea was pounded to dust near Gaza City's al-Shati refugee camp, leaving only a few tottering bits of facade. Just down the street, hardly anything remained in what had been a neighbourhood of low-built homes on winding lanes, according to the photos by Maxar Technologies.

The military says it only strikes militant targets and accuses Hamas of operating among civilians in an attempt to protect its fighters. The Israeli military said an airstrike killed one of two masterminds of the Oct. 7 massacre, Shadi Barud, the head of Hamas' intelligence unit.?

Palestinian militants have fired thousands of rockets into Israel since the war began.

Hamas' military wing said Thursday that Israeli bombardment has so far killed about 50 of the hostages. There was no immediate comment from Israeli officials, who have denied previous, similar claims.

The conflict has threatened to ignite a wider war across the region.

Hezbollah, an Iranian-backed ally of Hamas in Lebanon, has repeatedly traded fire with Israel along the border. The United States has sent two aircraft carrier strike groups to the region, along with additional fighter jets and other weaponry and personnel, in part to deter Iran and its allies from entering the war on the side of Hamas.

US Defence Secretary Lloyd Austin said the strikes in eastern Syria were “a response to a series of ongoing and mostly unsuccessful attacks against US personnel in Iraq and Syria by Iranian-backed militia groups that began on Oct. 17.”

He said President Joe Biden directed the narrowly tailored strikes “to make clear that the United States will not tolerate such attacks and will defend itself, its personnel and its interests.” He added that the operation was separate and distinct from Israel's war against Hamas.

Israel has vowed to crush Hamas' capacity to govern Gaza or threaten Israel again but also says it doesn't want to reoccupy the territory, from which it withdrew soldiers and settlers in 2005. That could prove a daunting challenge, since Hamas is deeply rooted in Gaza, with political and charity organizations as well as a formidable armed wing.

Benny Gantz, a retired general and a member of Israel's war Cabinet, said Thursday that any possible ground offensive would be only “one stage in a long-term process that includes security, political and social aspects that will take years.”

“The campaign will soon ramp up with greater force,” he added.

Palestinians in Gaza are contending with a worsening humanitarian crisis as supplies of food, medicine and fuel for powering emergency generators run low. The U.N. agency for Palestinian refugees, which provides basic services to hundreds of thousands of people, including operating schools turned into shelters, has said it may run out of fuel within days.

Gaza's sole power station shut down for lack of fuel days after the start of the war, and Israel has barred all fuel deliveries, saying it believes Hamas would steal them for military purposes.

About 1.4 million of Gaza's 2.3 million residents have fled their homes, with nearly half of them crowding into UN shelters. Hundreds of thousands remain in northern Gaza, despite Israel ordering them to evacuate to the south and saying that those who remain might be considered “accomplices” of Hamas.

In recent days, Israel has let more than 70 trucks with aid enter from Egypt, but aid workers say the convoys meet only a tiny fraction of the territory's mounting humanitarian needs.

Nine Arab countries — including key US allies and nations that have signed peace or normalisation deals with Israel — issued a joint statement Thursday calling for an immediate cease-fire and an end to the targeting and death of civilians.

“The right to self defense by the United Nations Charter does not justify blatant violations of humanitarian and international law,“ said the statement, signed by Egypt, Jordan, Bahrain, The United Arab Emirates, Saudi Arabia, Oman, Qatar, Kuwait and Morocco.?