Joe Biden made clear he came to Israel with a single message: “You are not alone”.

The Hamas attack left deep wound among Israelis, the US president said – but he urged the country not to make “mistakes” like US after the September 11 2001 terror attacks.

And he reiterated his support for a two-state solution to the conflict.

After talking to Israeli prime minister Benjamin Netanyahu, he posted on social media: “I asked tough questions as a friend of Israel. We will continue to deter any actor wanting to widen this conflict.”

After days of living under a total blockade, civilians in Gaza will receive limited assistance from Egypt and the US, officials announced on Wednesday.

Egypt will allow up to 20 aid trucks of food, water, and medical supplies into the territory through Rafah, while the US will send $100m in aid.

“This money will support more than 1 million displaced in conflict...including emergency needs in Gaza,” Joe Biden said Wednesday during a speech from Israel.

Human rights groups have said the additional supplies won’t relieve the pressing humanitarian crisis in Gaza, as key infrastructure is shut down because of blockaded electricity and fuel supplies.

US officials say they’ve concluded that Israel was not behind a blast that reportedly killed 500 people at a Gaza hospital on Tuesday, affirming statements from Israeli leaders that the explosion was the result of a botched Palestinian militant operation instead.

Jordan’s foreign minister Ayman Safadi said that while the US and Israel have one view of the explosion, many Middle East countries don’t share it.

“Nobody is buying that narrative in this part of the world,” Mr Safadi told NBC News.

UK prime minister Rishi Sunak will visit Israel and other regional capitals this week, as the Israel-Hamas war continues to escalate.

“Every civilian death is a tragedy. And too many lives have been lost following Hamas’ horrific act of terror,” Downing Street said in a statement.

“The attack on Al-Ahli Hospital should be a watershed moment for leaders in the region and across the world to come together to avoid further dangerous escalation of conflict,” Mr Sunak added.

The visit follows a high-profile trip from Joe Biden to Israel on Wednesday.

A GOP congressman is furious that representative Rashida Tlaib of Michigan blamed Israel for an explosion at a Gaza hospital yesterday, as Israel denies its forces are behind the blast.

“It is appalling and unacceptable that Democrats in Congress partook in Hamas’ misinformation campaign,” Mike Lawyler of New York said in a statement Wednesday. “Rep Tlaib and her radical colleagues helped spread this insidious lie far and wide, without remorse, and as of this morning have yet to take down their posts, issue an apology, or place blame on the actual perpetrators with the same conviction.”

The Democratic congressman, one of the first two Muslim women elected to Congress, has continued to criticise the IDF and the US for not seeking a ceasefire.

“As an American, not just as a member of the United States Congress, I am ashamed,” she said at a rally on Wednesday. “I am ashamed that they’re saying, ‘not yet. Maybe next week.’ ... How many more have to die?”

The United Nations special coordinator for the Israel-Palestine peace process warned on Wednesday that the conflict was reaching dangerous new territory, after the US vetoed a Security Council resolution on the ongoing Israel-Hamas war.

“I fear that we are at the brink of a deep and dangerous abyss that could change the trajectory of the Israeli-Palestinian conflict, if not of the Middle East as a whole,” Tor Wennesland told The New York Times after the vote.

The US said it voted against the resolution because it “made no mention of Israel’s right of self-defense.”

The Israel-Hamas war continues to threaten evolving into a wider regional conflict.

The IDF told CNN early on Thursday local time it is in the process of striking various Hezbollah targets in Lebanon, the latest in a series of skirmishes with the militant group since fighting broke out.

Human Rights Watch said on Wednesday that the US and Israel should do more to end what it called the “collective punishment” of Gaza’s civilians, which amounts to a “war crime.”

The group argued that despite Israel’s announcement on Wednesday it would allow limit shipments of food, water, and medicine into the enclave from Egypt, the measures “fall short” because of a continued blockade of key fuel and electricity supplies into Gaza.

“Israel’s bombardment and unlawful total blockade of Gaza mean that countless wounded and sick children, among many other civilians, will die for want of medical care,” Bill Van Esveld, associate children’s rights director at Human Rights Watch, said in a statement on the group’s website. “US President Joe Biden, who is in Israel today, should press Israeli officials to completely lift the unlawful blockade and ensure the entire civilian population has prompt access to water, food, fuel, and electricity.”

Amid the ongoing humanitarian crisis in Gaza, a tiny trickle of aid will begin reaching the civilians of the besieged Palestinian enclave.

Aid supplies from Egypt will enter Gaza across the Rafah border crossing, according to Joe Biden.

Israel has announced it will not interfere with the shipments.

Watch footage of the attack below via Independent TV.