US secretary of state Antony Blinken has sought to build support for planning a post-war future for Gaza as he met wary Arab leaders during his latest urgent mission to the Middle East since the Israel-Hamas conflict began.

He held talks in Jordan’s capital with the officials, who are angry and deeply suspicious of Israel as it intensifies military operations.

The talks came a day after Israeli Prime Minister Benjamin Netanyahu snubbed Mr Blinken’s blunt warning that Israel risks losing any hope of an eventual peace deal with the Palestinians unless it eases the humanitarian crisis in Gaza.

Mr Blinken’s first meeting was with Lebanon’s caretaker prime minister, Najib Mikati, whose economically and politically ravaged country is home to Hezbollah, an Iranian-backed force that is hostile to Israel.

The United States has grave concerns that Hezbollah, which has stepped up rocket and cross-border attacks on northern Israel, will take a more active role in the Israel-Hamas war.

Hezbollah’s chief, Hassan Nasrallah, on Friday gave his first major speech since the Hamas attacks on October 7, but did not forecast his group’s greater involvement even as he professed that Hezbollah was unperturbed by US attempts to deter it.

Mr Blinken thanked Mr Mikati for his leadership “in preventing Lebanon from being pulled into a war that the Lebanese people do not want”, the US State Department said. Mr Blinken also discussed US efforts to secure humanitarian assistance for civilians in Gaza.

Neither Mr Blinken nor Mr Mikati addressed reporters at the start of their meeting.

Mr Blinken did not speak publicly as he posed for pictures with Qatar’s foreign minister, whose country has emerged as the most influential interlocutor with Hamas.

Qatar has been key to negotiating the limited release of hostages held by Hamas as well as persuading Hamas to allow foreign citizens to leave Gaza and cross into Egypt.

Mr Blinken also met the head of the UN agency in charge of assisting Palestinian refugees, thanking Phillipe Lazzarini for his group’s “extraordinary work every single day as a lifeline to Palestinians in Gaza and a great, a great cost”.

The agency has seen about 70 staffers killed in the war so far and is running critically low on necessary supplies such as food, medicine and fuel.

Later, Mr Blinken went into joint talks with the foreign ministers of Qatar, Jordan, Egypt, Saudi Arabia and the United Arab Emirates, and the chair of the PLO executive committee.

All have denounced Israel’s tactics against Hamas, which they say constitute unlawful collective punishment of the Palestinian people.

While in Amman, Mr Blinken planned to see Jordan’s King Abdullah II, whose country this week recalled its ambassador to Israel and told Israel’s envoy not to return to Jordan until the Gaza crisis was over.

Mr Blinken will go to Turkey on Sunday for meetings with President Recep Tayyep Erdogan and top officials on Monday, the State Department said. Turkey on Saturday followed Jordan’s lead and announced it had recalled its ambassador to Israel because of the situation in Gaza.

Arab states have so far resisted American suggestions that they play a larger role in latest Middle East crisis, expressing outrage at the civilian toll of the Israeli military operations but believing Gaza to be a problem largely of Israel’s own making.

The group meeting Mr Blinken was convened by Jordan’s foreign minister, Ayman al-Safadi, who said the gathering was organised “in the context of their efforts aimed at stopping the Israeli war on Gaza and the humanitarian catastrophe it is causing”, according to the ministry.

Egyptian officials said there is consensus among Arab governments involved in discussions with the US to resist “any talks” on the post-war period in Gaza before establishing a ceasefire and allowing the delivery of more humanitarian aid and fuel to Gaza.

They said Egypt, in co-ordination with Qatar, has proposed humanitarian pauses of fighting for six hours to 12 hours every day to permit aid deliveries, evacuations of seriously injured to Egypt and the entry of fuel. The United Nations would oversee the delivery of fuel to hospitals and other vital civilian infrastructure.

US officials believe Arab backing, no matter how modest, will be critical to efforts to ease the worsening conditions in Gaza and lay the groundwork for what would replace Hamas as the territory’s governing authority, if and when Israel succeeds in eradicating the group.

But ideas on Gaza’s future governance are few and far between.

Mr Blinken and other US officials are offering a vague outline that it might include a combination of a revitalised Palestinian Authority, which has not been a factor in Gaza since 2007, with international organisations and potentially a peacekeeping force.

US officials acknowledge these ideas have been met with a distinct lack of enthusiasm.

About 100 trucks entered Gaza over the past two days and the current capacity is about 100 to 105 per day. The Israelis have indicated they are now willing to consider screening and allowing in as many trucks as can be handled efficiently, according to two officials travelling with Mr Blinken.

Given the already exponential increase in southern Gaza’s population by roughly 800,000 to one million and the potential for many of the 300,000 to 400,000 still in the north to flee to the south, the needs are expected to grow to require as many as 500 to 600 trucks per day, said the officials.

Increasing to that capacity will also depend on the relative stability of the security situation on the ground, something unlikely to be achieved without humanitarian pauses, they said.

The officials said they believed the Israelis would come to understand the necessity of providing adequate assistance to Gaza’s growing southern population but were still grappling with what pauses might mean for the intense pressure they are applying against Hamas to get the group to release Israelis and others held hostage, the officials said.