The United States said Monday it opposed the International Criminal Court's (ICC) investigation into Israel's conduct in Gaza, amid reports that Israeli officials fear the Hague-based tribunal could soon issue arrest warrants.

Israeli Prime Minister Benjamin Netanyahu reportedly raised the issue with US President Joe Biden in a call at the weekend.

"We've been really clear about the ICC investigation, that we don't support it, we don't believe that they have the jurisdiction," White House Press Secretary Karine Jean-Pierre told a briefing.

Columbia University, the epicenter of pro-Palestinian protests that have upended college campuses across the United States, began suspending student demonstrators on Monday after they defied an ultimatum to disperse.

Overnight protesters occupied a campus building, barricading themselves inside while several others formed a human chain outside, according to videos posted on social media.

"Columbia community members took back Hamilton Hall just after midnight," student group Columbia University Apartheid Divest said in a statement.

European and Arab foreign ministers met in the Saudi capital on Monday to discuss how to join forces on advancing a two-state solution to the Israeli-Palestinian conflict.

"If we want to move this two-state solution forward it will not happen from the parties. I do not believe that Israel is ready to negotiate at this point, and I do not think that the US is ready to take the necessary leadership," Norwegian Foreign Minister Espen Barth Eide, one of the organisers of the meeting, told reporters after it concluded.

Tensions rose Monday at Columbia University, the epicenter of pro-Palestinian protests across US campuses, with college authorities and student demonstrators in open conflict after negotiations broke down.

Across the United States, police arrested around 275 people on four separate campuses over the weekend, with the White House calling on the growing protests in recent weeks to remain peaceful.

The World Central Kitchen nonprofit, which supplied meals in Gaza until seven of its aid workers were killed by an Israeli strike nearly a month ago, is to resume operations, its CEO said.

The US-based charity founded by celebrity Spanish-American chef Jose Andres provides food to communities facing humanitarian crises and disasters.

On the night of April 1, seven of its workers were killed in three air strikes over four minutes by an Israeli drone as they ran for their lives between their three vehicles, the Israeli military has said.

In a desert region of the occupied West Bank, Israeli activist Eyal Shani has fitted a tiny camera on his T-shirt to collect evidence of settler violence against Palestinian sheep farmers.

Campaigners like Shani have been trying to protect Palestinians from Jewish settlers in the rugged Masafer Yatta area south of Hebron, in the southern West Bank, but they say it has become increasingly difficult with attacks soaring following the outbreak of war in Gaza.

As garbage piles up and the heat rises in war-torn Gaza, flies and mosquitoes proliferate in crowded Rafah city and life becomes even more grim for displaced people living in tents.

Last week, temperatures already topped 30 degrees Celsius (86 degrees Fahrenheit), turning the makeshift shelters made from plastic tarps and sheets into sweltering ovens.

On a sliver of land on the outskirts of the far-southern city on the Egyptian border, about 20 of these tents have been erected, all shaded by a large sheet stretched above them.

US Secretary of State Antony Blinken said Monday he was hopeful Hamas would accept an "extraordinarily generous" offer to halt Israel's Gaza offensive in return for the release of hostages.

"Hamas has before it a proposal that is extraordinarily, extraordinarily generous on the part of Israel," Blinken said in Riyadh at the World Economic Forum.

"In this moment, the only thing standing between the people of Gaza and a ceasefire is Hamas," he said.

The United States is nearly ready with a security package to offer Saudi Arabia if it normalises relations with Israel, Secretary of State Antony Blinken said Monday, as he seeks incentives for Israel to support a Palestinian state.

Blinken was visiting the kingdom on his seventh trip to the region since the October 7 Hamas attack on Israel, which has responded with a relentless offensive in Gaza that has drawn global criticism.

US Secretary of State Antony Blinken arrived Monday in Riyadh at the start of a new crisis tour aimed at pushing an elusive Israel-Hamas ceasefire and increasing humanitarian aid into the Gaza Strip.

The top US diplomat will also visit Jordan and Israel on his seventh visit to the region since the October 7 Hamas attack on Israel which set off a relentless Israeli military campaign in Gaza.

In Saudi Arabia, Blinken is expected to hold new talks with the Saudi leadership on potential normalisation of relations with Israel, a State Department official said.