The helicopter crash in which Iranian President Ebrahim Raisi, the country's foreign minister and other officials were killed is likely to reverberate across the Middle East, where Iran's influence runs wide and deep.

That's because Iran has spent decades supporting armed groups and militants in Lebanon, Syria, Iraq, Yemen and the Palestinian territories, allowing it to project power and potentially deter attacks from the United States or Israel, the sworn enemies of its 1979 Islamic Revolution.

A Gaza hospital said Sunday that an Israeli air strike targeting a house at a refugee camp in the center of the Palestinian territory killed at least 20 people.

"We received 20 fatalities and several wounded after an Israeli air strike targeted a house belonging to the Hassan family in Al-Nuseirat refugee camp in central Gaza," the Al-Aqsa Martyrs Hospital said in a statement.

President Joe Biden's national security adviser met early Sunday with Saudi Arabia's Crown Prince Mohammed bin Salman to discuss what the kingdom described as the "semi-final" version of a wide-ranging security agreement between the countries.

The announcement by the state-run Saudi Press Agency comes as the strategic deal had been upended after Hamas' Oct. 7 attack on Israel that Israeli authorities claim it killed 1,200 people and saw 250 others taken hostage back to the Gaza Strip.

Benny Gantz, a popular centrist member of Israel's three-member War Cabinet, has threatened to resign from the government if it doesn't adopt a new plan in three weeks' time for the war in Gaza, a decision that would leave Prime Minister Benjamin Netanyahu more reliant on far-right allies.

The announcement deepens a divide in Israel's leadership more than seven months into a war in which Israel has yet to accomplish its goals of dismantling Hamas and returning scores of hostages abducted in the militant group's Oct. 7 attack.

A crude oil tanker was hit by a missile off the coast of Yemen's southwestern city of Mokha overlooking the strategic Bab al-Mandeb strait, maritime security firm Ambrey said Saturday.

Heavy clashes and bombardment Saturday rocked Gaza's southern city of Rafah, witnesses said, as the Israeli military announced the first 310 pallets of humanitarian aid had entered the besieged territory via a US-built pier.

Dozens of Israeli protesters attacked a truck in the occupied West Bank, beating its driver and setting it on fire in an apparent attempt to prevent aid from reaching Gaza, the Israeli military said Friday.

The Israeli military says soldiers arrived at the scene late in the day and tried to separate the attackers from the driver and provide medical treatment. It says the protesters then attacked the soldiers, lightly injuring two officers and a soldier. According to Israeli media, the truck was carrying ordinary commercial goods, not aid for Gaza.

Yemen's Houthi rebels on Friday claimed to have shot down an American drone, hours after footage circulated online of what appeared to be the wreckage of an MQ-9 Reaper drone. The U.S. military did not immediately acknowledge the incident.

If confirmed, this would be yet another Reaper downed by the Houthis as they press their campaign over the Israel-Hamas war in the Gaza Strip.

Thirteen Western countries, including many traditionally supportive of Israel, appealed to it Friday not to launch a large-scale offensive on Rafah.

"We reiterate our opposition to a full-scale military operation in Rafah that would have catastrophic consequences on the civilian population," read the appeal, sent by the countries' foreign ministers to their Israeli counterpart Israel Katz and made public.

Israel told the United Nations' top court on Friday that a case brought by South Africa about its military operation in Gaza "makes a mockery of the heinous charge of genocide."

The International Court of Justice is holding a third round of hearings on emergency measures requested by South Africa, which wants the court, based in The Hague in the Netherlands, to order a cease-fire in the enclave.