The Israeli military said it had deployed troops to “secure the area” around the jetty. The “vessel underwent a comprehensive security inspection”, it added.

The Hamas-ruled territory’s health ministry said Israeli fire had earlier killed 20 people waiting to receive aid. Israel blamed “armed Palestinians” it said had opened fire on civilians.

The ministry said at least 149 people had been killed in the past 24 hours.

Witnesses reported air strikes and fighting in the southern Gaza Strip’s main city Khan Younis as well as areas of the north where humanitarian conditions have been particularly dire.

As Muslim worshippers marked the first Friday of the fasting month of Ramadan, thousands attended prayers in the revered Al-Aqsa mosque compound in Israeli-annexed east Jerusalem, amid a heavy Israeli security presence and restrictions on entry.

“It’s the first year I see so many forces [police], and their eyes, their look … Two years ago I could argue with them, but now … they’re giving us no chance”, said Amjad Ghalib, a 44-year-old carpenter.

In southern Gaza’s Rafah, the last major population centre yet to be subjected to a ground assault, AFPTV footage showed worshippers praying by the rubble of a destroyed mosque.

The office of Israeli Prime Minister Benjamin Netanyahu said on Friday he had approved the military’s plan for an operation in Rafah, where most of the Gaza Strip’s population has sought refuge, without providing details or a timeline.

US President Joe Biden, who has supported Israel during the war, has said an invasion of Rafah would be a “red line” without credible civilian protection plans in place.

US Secretary of State Antony Blinken said Washington had not seen any plans for a Rafah operation, but reiterated that it wanted a “clear and implementable plan” to ensure civilians are “out of harm’s way”.

In negotiations aimed at securing a new truce and hostage deal, Hamas has put forward a new proposal for a six-week ceasefire and the exchange of several dozen Israeli hostages for Palestinian prisoners, an official from the militant group said.

Hamas would want this to lead to “a complete [Israeli] withdrawal from the Gaza Strip and a permanent ceasefire”, the official added.

The proposal would involve the release of some 42 hostages, who would be exchanged for Palestinian prisoners at a ratio of between 20 and 50 prisoners per hostage, the official said, down from a previous proposal of roughly 100 to one.

Palestinian militants seized about 250 Israeli and foreign hostages during the Hamas attack of October 7, dozens of whom were released during a week-long truce in November. Israel believes about 130 captives remain in Gaza including 32 presumed dead.

Israel said it was sending a delegation to Qatar for a new round of negotiations, a day after Netanyahu accused Hamas of “clinging to unacceptable demands”.

Secretary of State Antony Blinken said the United States was working “intensively” with its fellow mediators Egypt and Qatar “to bridge the remaining gaps”.

The United States, which provides Israel with billions of dollars in military funding, has grown increasingly critical of Netanyahu over his handling of the war.

US Senate leader Chuck Schumer called for a snap Israeli election, describing Netanyahu as one of several “major obstacles” to peace in a speech praised by Biden.

“I think he expressed serious concern shared not only by him, but by many Americans,” the US president said.

Netanyahu’s right-wing Likud party retorted that Israel was “not a banana republic but an independent and proud democracy”.

The United Nations has repeatedly warned of looming famine, with only a fraction of the supplies needed to sustain Gaza’s 2.4 million people being let in.

With fewer aid trucks entering by road, efforts have multiplied to get relief in by air and sea.

Cyprus, the nearest European Union member country to Gaza, has said a second, bigger vessel is being readied for the fledgling maritime air corridor after the Open Arms completes its mission.

“God willing, they will bring food for the children, that’s all we ask for”, displaced Gazan Abu Issa Ibrahim Filfil told AFPTV.