Yemen's Houthis said that they attacked an Aramco facility in Saudi Arabia's capital, Riyadh, with ballistic missiles and drones.

There was no immediate confirmation from Saudi Arabia.

The Israeli army blew up a school, burned homes and carried out airstrikes and artillery shelling across southern Lebanon, according to the official Lebanese National News Agency.

In Houla, in the Marjayoun district, Israeli forces planted explosives in a private school building and detonated them, destroying the structure, the agency reported.

Troops also set fire to homes in the town, it said.

More than 80 percent of the emergency oil stocks pledged by International Energy Agency (IEA) members in March have already been released, the head of the agency said.

"Around 325 million barrels of the IEA collective action announced on 11 March have so far been released," Executive Director Fatih Birol told G7 leaders, according to an agency statement. Birol added this represented more than 80 percent of the 400 million barrels originally pledged.

Energy markets continued to face significant pressure from the Strait of Hormuz crisis, particularly in diesel supplies, Birol said.

Iran's rial continued its decline, as the central bank announced an injection of up to $2 billion to support the currency while the economy faces US sanctions and a naval blockade.

The US dollar was sold around 2.688 million rials, up from 2.632 million on Friday, according to free-market tracking website bon-bast.com, while alanchand.com reported 2.695 million rials per dollar.

State television said state banks began selling up to $2 billion to support the currency, which has lost more than half of its value in the past year.

Portugal’s Public Prosecutor’s Office has opened an inquiry into the legality of US military use of Lajes Air Base ahead of its war against Iran, according to media reports.

The inquiry follows a complaint filed by the Left Bloc in April, which called for an investigation into whether the use of the base violated domestic and international law, broadcaster RTP reported.

Flights between Iran and Iraq’s Najaf will resume on Sunday, the Iraqi state news agency reported.

Iraq had suspended flights amid US sanctions before securing an exemption allowing air links between Najaf and Iranian airports.

A 25-year-old dual British-Iranian national arrested earlier this week as part of an investigation into a suspected plot involving Royal Air Force Fairford has been released on bail, police said.

In a statement, Counter Terrorism Policing said the suspect was arrested in Westminster on Thursday "on suspicion of preparation of terrorist acts under Section 5 of the Terrorism Act 2006."

It said the suspect has been released on bail, adding that searches of two properties in the same area have concluded.

A large plume of smoke and fire was seen rising in the vicinity of an Aramco facility in Riyadh, a witness told Reuters.

There was no immediate confirmation from Saudi authorities about the fire. Aramco did not immediately respond to a request for comment.

The fire comes amid escalating hostilities between Saudi Arabia and Yemen's Iran-aligned Houthis, who have stepped up attacks on Saudi cities and energy infrastructure.

The Houthi group claimed Saturday that Saudi air strikes targeted the Yemeni capital, Sanaa, and the northern Saada province amid escalation in the Arab country.

In a post on the US social media company X, the group's Al-Masirah TV said Saudi aircraft fired missiles at a telecommunications network in Saqain district in Saada as well as Maran in the same province.

Yemeni army spokesman Col. Majed Abdullah al Nuzaili said on Saturday that government forces carried out 71 “precise targeting operations” against Houthi positions in Taiz province.

He said the operations targeted combat gatherings, military buildups and reinforcements across 10 areas, including al Aqrood, Sama’, al-Ahkum and Jabal Rasin.

According to al Nuzaili, the operations “resulted in the destruction” of several transport and support vehicles and the “neutralisation of militia members.”

He did not provide casualty figures.

The Houthis did not comment on the statement.