Samir Farig had never thought of voting for Israel's Arab political parties before, but he did this week, joining a wave of support that helped deliver a breakthrough.

Israelis were contending with the prospect of a third election on Thursday, two days after an unprecedented repeat election left the country's two main political parties deadlocked, with neither Prime Minister Benjamin Netanyahu nor his rivals holding a clear path to a coalition government.

While weeks of negotiations to form a coalition government lay ahead, conditions set by the parties could hobble the task within the allotted time, prompting a never-before held third election.

The United Nations has clinched a deal between Syrian stakeholders on the line-up of a committee tasked with drafting a new constitution for the war-ravaged country, the UN chief said Wednesday.

French Foreign Minister Jean-Yves Le Drian said Thursday that a claim by Yemeni rebels that they carried out attacks on two Saudi oil facilities "lacks credibility".

Israeli Prime Minister Benjamin Netanyahu called on his main challenger Benny Gantz on Thursday to form a unity government together as election results showed both without an obvious path to a majority coalition.

Netanyahu, in a video message, said he preferred to form a right-wing coalition, but the results showed it was not possible.

U.S. Secretary of State Mike Pompeo said Thursday that America backs Saudi Arabia's "right to defend itself" after a weekend attack targeted the heart of its oil industry, comments coming after he described the assault as an "act of war."

The attacks have reignited fears over a wider conflagration in the region, as tensions remain high over Iran's collapsing nuclear deal with world powers.

Kuwait's army said Wednesday it was raising its readiness levels and carrying out military exercises, amid soaring regional tensions after neighbouring Iran was accused of attacking Saudi oil infrastructure.

Iran's supreme leader Ayatollah Ali Khamenei approved last weekend's attack on Saudi Arabia's oil infrastructure, CBS News reported Wednesday, citing an unnamed US official.

US Secretary of State Mike Pompeo denounced strikes on Saudi Arabia's oil infrastructure as an "act of war", as Riyadh unveiled new evidence it said showed the assault was "unquestionably" sponsored by arch-foe Iran.

Saudi Arabia said it will unveil evidence on Wednesday linking regional foe Iran to attacks on key oil installations, as US Secretary of State Mike Pompeo heads to the kingdom to discuss possible retaliation.