The United States' top diplomat was on his fourth crisis visit to the Middle East since the war in the Gaza Strip began, meeting with Israeli Prime Minister Benjamin Netanyahu in Tel Aviv on Tuesday.

Blinken told a news conference afterwards that the United States would continue to support its ally, but also called on Israel to do more to protect those trapped in the besieged Palestinian territory, saying the "daily toll on civilians in Gaza, particularly children, is far too high".

Washington has floated a post-war scenario in which a reformed Palestinian Authority, currently led by President Mahmud Abbas, governs Gaza in addition to the occupied West Bank.

"Israel must stop taking steps that undercut Palestinians' ability to govern themselves effectively," Blinken said Tuesday, emphasising the importance of progress towards a two-state solution.

"The Palestinian Authority also has a responsibility to reform itself, to improve its governance -- issues I plan to raise with President Abbas," he added.

Netanyahu, however, has shown no interest in reviving negotiations towards a Palestinian state, and a post-war plan outlined by Defence Minister Yoav Gallant envisions local "civil committees" governing Gaza after Israel has dismantled Hamas.

Blinken declined to say whether Netanyahu's views had shifted in their discussions.

Hamas seized sole control of the Gaza Strip in 2007, ousting Abbas's Fatah party, with which it had shared power.

Multiple attempts at reconciliation have failed, but Hamas chief Ismail Haniyeh said last week he was "open to the idea" of a single Palestinian administration in Gaza and the West Bank.

Jordan's royal palace, meanwhile, said King Abdullah II would host Abbas and Egyptian President Abdel Fattah al-Sisi on Wednesday for talks on Gaza, including efforts to "push for an immediate ceasefire".

 'We see no hope' 

The Palestinian Health Ministry announced on Wednesday that 70 people were killed and more than 130 wounded in overnight attacks.

The Israeli army announced the death of another soldier early Wednesday, bringing the total killed since its ground invasion began to 186.

The war has displaced the vast majority of Gaza's population, and dire shortages of food, water and medicine have left hundreds of thousands at risk of famine and disease, UN agencies have said.

AFP footage on Tuesday showed a crowd of Gazans rushing towards aid trucks that were carrying flour and canned goods into Gaza City, in the territory's devastated north, with some climbing up the sides of the vehicles and tossing down food.

"We've been listening to the news for 98 days, hoping that the war will end, but due to this difficult situation we see no hope," Ibrahim Saadat told AFP at a camp for displaced people in the southern border town of Rafah.

"Due to the lack of water, we shower just once per month. Psychologically we are suffering, and diseases have spread everywhere."

The World Health Organization warned on Tuesday that its ability to provide aid and support to Gazan hospitals was "shrinking".

During his visit, Blinken called for "more food, more water, more medicine" to be delivered to the territory, and said that Israel had agreed to a UN assessment in the north to "determine what needs to be done to allow displaced Palestinians to return safely".

Israel says it has largely achieved military control over northern Gaza and that operations are focussing further south.

In the southern city of Khan Yunis, wounded people, some of them children, were rushed to hospital on Tuesday after a strike hit displaced Palestinians living in tents at Al-Mawasi camp.

"We were chatting under a palm tree, and suddenly we saw stones and shrapnel everywhere," young Lama Abu Gemmayzeh told AFP.

"Some of us started running, and others were on the ground, and we started screaming for ambulances."

The Israeli army said it was keeping up its operations in the Khan Yunis and Maghazi areas on Wednesday, with more than 150 targets hit.

It said troops found 15 tunnel shafts in Al-Maghazi as well as rocket launchers, missiles, drones and explosive charges.