Elon Musk's social media platform X has defended itself against claims from the European Union that it is failing to tackle disinformation around the violence in Israel and Gaza.

The firm's CEO Linda Yaccarino wrote that the platform had "taken action to remove or label tens of thousands of pieces of content" and removed hundreds of accounts linked to Gaza militant organisation Hamas, which attacked Israel on Saturday.

Dan Schwarzfuchs has led the emergency unit in southern Israel's biggest hospital for almost a decade, but the rhythm of wounded rushing in since Hamas's bloody weekend assault was unimaginable for him.

"The moment we finished treating a patient and transferred the person to the operation room or to intensive care, another wounded would immediately take their place," Schwarzfuchs, 60, told AFP.

"The floor of the entire trauma unit was covered in blood, we didn't stop cleaning it."

The International Energy Agency said on Thursday the risk of oil supply disruptions due to the conflict between Israel and Hamas is limited but that it stands ready to intervene in markets if necessary.

The Paris-based agency, in addition to its analysis and advisory roles, coordinates the release of emergency stocks held by its 31 mostly advanced-economy member nations.

The International Committee of the Red Cross is in contact with Hamas and Israel to try to facilitate the release of hostages taken into Gaza, the organisation said Thursday.

The ICRC also believes that the humanitarian situation inside the Gaza Strip will very quickly become "unmanageable" without a way to get supplies into the besieged territory and distribute them.

Benjamin Netanyahu's government had divided Israel with its controversial judicial reforms, but he now presides over a country which is united in its demand for a definitive reprisal against Hamas.

This sudden change in politics stems directly from the collective trauma caused to Israeli society by the bloody and unprecedented surprise attack by Hamas on Saturday, in which it killed at least 1,200 people and kidnapped dozens more.

Secretary of State Antony Blinken vowed unwavering US support for Israel in its war on Hamas after talks Thursday with Prime Minster Benjamin Netanyahu, who promised to "crush" the Palestinian militant group.

Hamas gunmen killed more than 1,200 people in Israel and took about 150 hostages in Saturday's surprise attack, the deadliest since the country's creation in 1948.

Israel has retaliated by raining air and artillery strikes in Gaza for six days, claiming more than 1,400 lives and displacing over 400,000 people in the crowded enclave.

Twenty-one Thai nationals have been killed in the conflict between Israel and militant group Hamas, Prime Minister Srettha Thavisin said Thursday, up from the previous toll of 20.

"The update from last night is bad news that one more Thai died, the number rises to 21," he said.

The war was triggered by a bloody attack by Hamas and has left thousands dead with around 150 hostages taken.

There are approximately 30,000 Thais in Israel, mostly working in the agriculture sector, according to Thailand's labour ministry.

From blood-streaked homes to swollen body bags, the scars of the shock raid by Hamas militants on communities in southern Israel remain as troops mass on the border with Gaza.

A pile of corpses at the entrance to the Beeri kibbutz less than five kilometres (around three miles) from the border warns of what happened inside the gated community, which was overrun on Saturday by militants who killed more than 100 residents, the military said.

"The devastation here is absolutely massive," said Doron Spielman, an Israeli army spokesman.

Arab foreign ministers on Wednesday denounced Israel's siege of Gaza following the shock attack by Palestinian militants on Israel, demanding that aid be "immediately" allowed to enter the blockaded enclave.

Israel has imposed a "complete siege" on the Gaza Strip, cutting off the water supply, food, electricity and other essential supplies, after Saturday's massive assault by Hamas militants that has killed hundreds on both sides.

At least four Palestinians were killed Wednesday as armed Israeli settlers attacked a town south of Nablus in the occupied West Bank, the Palestinian health ministry said.

In separate incidents, a Palestinian man was killed by Israeli army fire near Bethlehem and a teenager was killed near Hebron, the ministry said.

The latest fatalities bring to 29 the Palestinian death toll in the West Bank in violence related to the conflict since Hamas militants launched on Saturday an assault on Israel's south from the blockaded Gaza Strip.