JERUSALEM — An Israeli airstrike in Gaza killed a baby girl and her parents Saturday, Nasser hospital officials and witnesses said, while families of hostages called for a “nationwide day of stoppage” in Israel to express growing frustration over 22 months of war.

The baby’s body, wrapped in blue, was placed on those of her parents as Palestinians prayed over them. Motasem al-Batta, his wife and the girl were killed in their tent in the Muwasi area.

“Two and a half months; what has she done?” neighbor Fathi Shubeir asked, sweating as temperatures in the shattered territory soared above 90 degrees Fahrenheit “They are civilians in an area designated safe.”

Israel’s military said it is dismantling Hamas’ military capabilities and takes precautions not to harm civilians. It said it couldn’t comment on the strike.

The United Nations is warning that levels of starvation and malnutrition in Gaza are at their highest since the war began. Palestinians are drinking contaminated water as diseases spread, while some Israeli leaders continue to talk openly about the mass relocation of people from Gaza.

Another 11 malnutrition-related deaths occurred in Gaza over the past 24 hours, the territory’s Health Ministry said Saturday, with one child was among them. That brings malnutrition-related deaths during the war to 251.

A 20-year-old Palestinian woman described as being in a “state of severe physical deterioration” died after being transferred to Italy for treatment, the hospital said Saturday.

The patient was admitted to Pisa University Hospital late Wednesday and died on Friday. She was removed from the Gaza Strip as part of a humanitarian mission and arrived with a “with a very complex, compromised clinical picture,” according to the hospital.

She died after entering a respiratory crisis and subsequently going into cardiac arrest, it said in a statement.

Hospital staff had performed tests and started supportive therapy before she died, the statement said.

The woman, named by Italian media as Marah Abu Zuhri, had arrived in Italy with her mother.The U.N. and partners say getting aid into the territory of over 2 million people, and then on to distribution points, remains highly challenging with Israeli restrictions and pressure from crowds of hungry Palestinians.

The U.N. human rights office says at least 1,760 people were killed while seeking aid from May 27 to Wednesday. It says 766 were killed along routes of supply convoys and 994 in the vicinity of “non-U.N. militarized sites,” a reference to the Israeli-backed and U.S.-supported Gaza Humanitarian Foundation, which since May has been the primary distributor of aid in Gaza.

The Hamas-led attack in 2023 killed around 1,200 people in Israel. Israel’s retaliatory offensive has killed 61,897 people in Gaza, according to the Health Ministry, which does not specify how many were fighters or civilians but says around half were women and children.

The ministry is part of the Hamas-run government and staffed by medical professionals. The U.N. and independent experts consider it the most reliable source on casualties. Israel disputes its figures but has not provided its own.