Spanish Prime Minister Pedro Sanchez became the most prominent European leader to describe the situation in Gaza as a genocide, as rescuers in the Palestinian territory said Israeli forces killed 65 people.
After more than 20 months of devastating conflict, Gaza's population of more than two million face famine-like conditions, human rights groups say.
Israel began allowing supplies to trickle in at the end of May following a blockade of more than two months, but distribution has been marred by chaotic scenes and near-daily reports of Israeli forces firing on those waiting to collect rations.
The director of medical supplies in Gaza's civil defence agency, Mohammad Al-Mughair, said that 65 people had been killed by Israeli forces in the territory.
Civil defence spokesman Mahmud Bassal earlier said that several of them were killed while waiting for aid.
Spanish Prime Minister Pedro Sanchez said Gaza was in a "catastrophic situation of genocide" and urged the European Union to immediately suspend its cooperation deal with Israel.
The comments represent the strongest condemnation to date by the Spanish prime minister, an outspoken critic of Israel's offensive who is one of the first European leaders, and the most senior, to use the term genocide to describe the situation in Gaza.
Both Taoiseach Micheál Martin and Tánaiste Simon Harris described the Israeli actions in Gaza as genocide last month.
Ireland joined South Africa's case against Israel at the International Court of Justice in January.
The case concerns breaches of the Convention on the Prevention and Punishment of the Crime of Genocide in Gaza.
WHO delivers first medical aid to Gaza in three months
The killings come as the World Health Organisation said it delivered its first medical aid to Gaza in over three months.
The aid shipment marks the first medical shipment into Gaza by the UN agency since 2 March, WHO Director General Tedros Adhanom Ghebreyesus said.
Israel imposed a total blockade on Gaza on 2 March.
Mr Tedros said nine trucks carrying essential medical supplies, including 2000 units of blood, and 1500 units of plasma made it into Gaza yesterday.
"The supplies were transported from Kerem Shalom, without any looting incident, despite the high-risk conditions along the route," he wrote on social media site X.
He stressed that the supplies will be distributed to priority hospitals in the coming days.
"The blood and plasma were delivered to Nasser Medical Complex's cold storage facility for onward distribution to hospitals facing critical shortages, amid a growing influx of injuries, many linked to incidents at food distribution sites," he said.
Last week, the WHO said only 17 of Gaza's 36 hospitals were minimally to partially functional, with the rest unable to function at all.
Mr Ghebreyesus said four WHO trucks are still at Kerem Shalom, with more en route to Gaza.
He thanked the Ministry of Health and the UN for its support.
"However, these medical supplies are only a drop in the ocean," he said.
"Aid at scale is essential to save lives. WHO calls for the immediate, unimpeded and sustained delivery of health aid into Gaza through all possible routes."
Israeli strikes and gunfire in Gaza
Health authorities said an Israeli airstrike killed at least nine people at a school housing displaced families in the Sheikh Radwan suburb in Gaza City, while another strike killed nine people near a tent encampment in Khan Younis in the south of the enclave.
Three other people were killed by Israeli gunfire and dozens were wounded as crowds awaited UN aid trucks along a main route in central Gaza, medics said, the latest in a series of multiple fatalities at aid distribution points.
The deaths come as Arab mediators, Egypt and Qatar, backed by the United States, reached out to the warring parties in a bid to hold new ceasefire talks, but no exact time was set for a new round, according to Hamas sources.
Israel's Prime Minister Benjamin Netanyahu, who leads a coalition with far-right parties, insists that Hamas, which has ruled Gaza for nearly two decades, release all hostages, relinquish any role and lay down its weapons to end to the war.
Hamas, in turn, has stated it would release the hostages if Israel agrees to a permanent ceasefire and withdraws from Gaza.
Read the latest stories from the Middle East
Israeli attacks on Gaza have so far killed more than 56,000 Palestinians, according to local health authorities, and destroyed much of the coastal strip.
Hamas-led militants killed close to 1,200 people and took 251 hostages when they attacked Israel on 7 October, 2023, according to tallies from Israel, which launched a huge military campaign in response.
Most of the hostages released so far have been freed through indirect negotiations between Hamas and Israel.
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