AFP journalists, medics and witnesses reported strikes across the coastal territory, where the UN says humanitarian relief is blocked after Israeli troops defied international opposition and entered eastern Rafah this week, effectively shutting a key aid crossing and suspending traffic through another.
At least 21 people were killed during strikes in central Gaza and taken to Al-Aqsa Martyrs Hospital in Deir al-Balah city, a hospital statement said.
Bodies covered in white lay on the ground in a court yard of the facility. Aman in a baseball cap leaned over one body bag, clasping a dust-covered hand that protruded, reports BSS.
The feet of another corpse poked from under a blanket bearing the picture of a large teddy bear.
In Rafah, witnesses reported intense air strikes near the crossing with Egypt, and AFP images showed smoke rising over the city.
Other strikes occurred in north Gaza, witnesses said.
Hamas on Saturday accused Israel of "expanding the incursion into Rafah to include new areas in the centre and the west of the city".
Israeli troops on Tuesday seized and closed the Palestinian side of the Rafah crossing -- through which all fuel passes into Gaza -- after ordering residents of eastern Rafah to evacuate.
The army said Saturday troops were engaged in "operational activity" at the crossing, where they fought against "armed terrorists" and found "numerous underground tunnel shafts".
While mediation efforts towards a truce and hostage release appeared tostall, Hamas's armed wing released a video of a captive seen alive in Gaza --the third such footage released in less than a month.
- Militarised -
The new evacuation order for eastern Rafah, posted on X by militaryspokesman Avichay Adraee, said the designated areas had "witnessed Hamasterrorist activities in recent days and weeks".
The war began with Hamas's unprecedented October 7 attack on Israel, whichresulted in the deaths of more than 1,170 people, mostly civilians, accordingto an AFP tally of Israeli official figures.
During their attack, militants also seized hostages. Israel estimates 128of them remain in Gaza including 36 whom the military says are dead.
Israel's retaliatory offensive has killed at least 34,971 people in Gaza,mostly women and children, according to the Hamas-run territory's healthministry.
A US State Department report on Friday said it was "reasonable to assess"that Israel violated norms on international law in its use of weapons from theUnited States but it did not find enough evidence to block shipments.
The State Department submitted its report two days after President JoeBiden publicly threatened to withhold certain bombs and artillery shells ifIsrael went ahead with an all-out assault on Rafah, where the United Nationssays 1.4 million have been sheltering.
Hamas in a statement said Israel's "continued control" and closure of theRafah crossing exacerbate the "humanitarian catastrophe" in the besiegedterritory.
Israeli Prime Minister Benjamin Netanyahu has pledged to "eliminate" Hamasbattalions in Rafah, after the army in January said it had dismantled themilitant group's command structure in northern Gaza.
But on Saturday Adraee said Hamas "is trying to rebuild" there, and orderedevacuations from the north's Jabalia refugee camp and Beit Lahia areas.
UN Secretary-General Antonio Guterres said Friday that Gaza risked an "epichumanitarian disaster" if Israel launched a full-scale ground operation inRafah.
The Israeli army said it reopened Kerem Shalom crossing near Rafah onWednesday, but aid agencies cautioned that getting assistance through themilitarised area remained extremely difficult.
The army said Saturday that rockets had been fired at the Kerem Shalomcrossing, but reported no injuries.
Israel has said its Erez crossing into northern Gaza remains open.
- Fleeing again -
On Friday the White House said it did not yet see a "major groundoperation" in Rafah but was watching the situation "with concern".Biden's administration had already paused delivery of 3,500 bombs as Israelappeared ready to attack Rafah.
Israel on Saturday said 300,000 people had fled Rafah since an initialevacuation order, as more residents piled water tanks, mattresses and otherbelongings onto vehicles and prepared to flee again.
"We don't know where to go. There is no place left in Gaza that is safe ornot overcrowded... There's nowhere we can go," said Farid Abu Eida, who waspreparing to leave Rafah, having already been displaced there from Gaza City.
Journalists as well began dismantling their tents and packing theirequipment to leave the city.
"Where to? After Rafah there is expulsion, not displacement. This is thequestion that Palestinians ask, what next?" said journalist Nabil Diab.
Israel said it had delivered 200,000 litres of fuel to Gaza on Fridaythrough Kerem Shalom -- the amount the United Nations says is needed every dayto keep aid trucks moving and hospital generators working.
Reiterating his calls for a ceasefire, Guterres said: "We are activelyengaged with all involved for the resumption of the entry of life-savingsupplies -- including desperately needed fuel -- through Rafah and Kerem Shalomcrossings."
The evacuation order on Saturday told residents to go to the "humanitarianzone" of Al-Mawasi, on the coast northwest of Rafah.
That area has "extremely limited access to clean drinking water, latrines"and other basic services, said Sylvain Groulx, Doctors Without Borders (MSF)emergency coordinator in Gaza.
In New York, the UN General Assembly voted overwhelmingly to grant thePalestinians additional rights in the global body and backed their drive forfull membership, vetoed by Washington at the Security Council.