The Security Council vote on the Palestinians' bid to become a full member state of the United Nations is expected to occur Thursday or Friday, diplomats said, as discussions continued.
Several diplomatic sources had told AFP earlier that the vote would take place on Thursday, but the situation has since changed with some member states asking for a Friday vote.
No firm decision had been taken as of late Wednesday, according to several diplomatic sources.
"It's still in the air," Slovenian Ambassador to the UN Samuel Zbogar told journalists.
"The vote is tomorrow at 3:00 o'clock. I'm sure. If you don't believe me, you will see it tomorrow," said Palestinian envoy Riyad Mansour.
Malta's diplomatic mission, which holds the presidency of the Security Council in April, has yet to confirm a schedule.
Whatever the date, the Palestinian initiative appears doomed to fail due to opposition from the United States.
The Palestinians, who have had observer status at the world body since 2012, have lobbied for years to gain full membership, which would amount to recognition of Palestinian statehood.
Any request to become a UN member state must first pass through the Security Council -- where Israel's ally the United States wields a veto -- and then be endorsed by the General Assembly.
In light of Israel's offensive in Gaza following Hamas's unprecedented October 7 attack, Palestinians revived a 2011 UN membership application last week, prompting the Security Council to launch a formal review process.
Israel reserves 'right to protect itself'
Israel's Prime Minister Benjamin Netanyahu said his country reserved the right to protect itself after Iran's unprecedented attack, and that it alone would decide how to do so.
Iran launched more than 300 drones and missiles at Israel over the weekend in an attack that caused little damage after most of the projectiles were intercepted.
The Israeli military has vowed to respond, prompting a diplomatic flurry aimed at calming the Middle East.
Israel's allies in Washington and Brussels have pledged to ramp up sanctions against Iran, while British Foreign Secretary David Cameron and his German counterpart Annalena Baerbock became the first Western envoys to visit Israel since the attack.
Netanyahu told the visiting ministers that Israel "will reserve the right to protect itself," his office said.
The pair offered "all kinds of suggestions and advice" during a meeting, Netanyahu said. "However, I would also like to clarify: we will make our decisions ourselves."
For his part, Cameron said "we're very anxious to avoid escalation and to say to our friends in Israel: It's a time to think with head as well as heart."
Baerbock emphasised that "the region must not slide into a situation whose outcome is completely unpredictable."
Tehran has vowed to hit back if its arch-foe Israel responds to the Saturday attack, which itself was launched after a deadly strike on Iran's Damascus consulate building earlier this month that was widely blamed on Israel.
Citing three unnamed Israeli sources, ABC News reported on Thursday that "Israel prepared for and then aborted retaliatory strikes against Iran on at least two nights this past week."
Among the range of possible reactions considered by the Israeli war cabinet were options to attack Iranian proxies elsewhere in the region or to conduct a cyberattack, the sources told ABC.
Meanwhile, the war in Gaza that has sent regional tensions soaring continued unabated with efforts at a truce appearing to flounder, as key mediator Qatar said it was re-evaluating its role in the stalling negotiations.
- Iran sanctions push -
Iran's President Ebrahim Raisi warned after the attack of "a fierce and severe response" to any retaliation, and on Wednesday his country celebrated its annual Army Day with a parade featuring various attack drones and long-range missiles.
Also on Wednesday, Tehran-backed Hezbollah wounded 14 soldiers, six seriously, in a strike on northern Israel, the Israeli army said.
This was the third day in a row the Lebanese militant group had wounded people in Israel, amid near-daily cross-border fire since the start of the Israel-Hamas war.
Later, Israel hit targets in eastern Lebanon, far from the border, a Hezbollah source told AFP.
Israel's top ally the United States has made clear it won't join any attack on Iran, vowing instead to level more sanctions against the country's missile and drone programme, its Islamic Revolutionary Guard Corps and the Iranian defence ministry.
Nevertheless, on Wednesday US Republicans unveiled a bill that would provide $26 billion of military aid to Israel which appeared to have White House backing.
EU foreign policy chief Josep Borrell said Brussels was also working to expand sanctions against Iran, including its supply of drones and other weapons to Russia and to proxy groups around the Middle East.
French President Emmanuel Macron said the EU and its allies had a "duty... to expand these sanctions", while Baerbock said Berlin backed further sanctions.
Cameron also urged the G7 to adopt new "coordinated sanctions against Iran," ahead of a meeting with counterparts from the Western-led grouping in Italy.
- Deadly strikes in Gaza -
The Israel-Iran tensions have threatened to overshadow the Gaza war, even as deadly bombardment and combat raged in the besieged territory.
Talks toward a truce and hostage release deal have stalled, said Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al-Thani, despite months of effort also involving US and Egyptian officials.
He later said that his country was undertaking "a complete re-evaluation of its role because there has been damage to Qatar", which does not have diplomatic relations with Israel.
The Israeli military said Wednesday its aircraft had "struck over 40 terror targets throughout the Gaza Strip" over the past day.
When one strike hit the southernmost city of Rafah, where 1.5 million Palestinians are sheltering, Jamalat Ramidan said she "woke up to the sounds of girls shouting 'mama, mama, mama'."
As she fled the carnage alongside the children, they stumbled over "body parts and corpses scattered all over the place," Ramidan told AFP.
The war was triggered by an unprecedented attack on Israel by Hamas on October 7 that resulted in the deaths of 1,170 people, mostly civilians, according to an AFP tally based on Israeli official figures.
The militants also took about 250 hostages, of whom Israel estimates 129 remain in Gaza, including 34 who are presumed dead.
Israel's devastating retaliatory offensive has killed at least 33,899 people in Gaza, mostly women and children, according to the health ministry in the Hamas-run territory.
- Aid sent by sea -
Israel has faced growing global opposition to the relentless fighting in Gaza, which the United Nations and aid agencies have warned has pushed the north of the territory to the brink of famine.
But Netanyahu rejected any claims about famine on Wednesday, saying Israel is doing "above and beyond" what is needed "on the humanitarian issue," his office said.
The Israeli army said that eight trucks of food aid from the World Food Programme that arrived via Ashdod port in Israel had entered Gaza through an Israeli land crossing.
It is the first time UN aid has travelled through the sea port since Israel said it would open it earlier this month following international pressure.
Meanwhile, the UN Security Council was preparing to vote Thursday on an Algeria-drafted resolution for full United Nations membership for a Palestinian state, diplomatic sources said.
However, the veto-wielding United States has repeatedly expressed opposition to the move.