One person has been killed and 11 others injured in a second attack on King Khalid International Airport in Saudi Arabia's capital, Riyadh, amid escalating hostilities involving Yemen's Houthi rebels.
Saudi authorities say a projectile struck a passenger hall at the airport on Sunday, sparking a fire. The victim was identified as a Pakistani resident, according to the country's civil aviation authority.
The latest attack follows a deadly strike on the same airport a day earlier, which reportedly killed 13 people and injured 308 others.
The Houthis have claimed responsibility for a series of attacks targeting Saudi Arabia, warning airlines and passengers against using the country's airports and airspace.
The group's military spokesperson, Brigadier General Yahya Saree, said the attacks involved ballistic and cruise missiles, as well as drones. He also claimed responsibility for strikes on oil facilities and Dammam airport in eastern Saudi Arabia.
Saree vowed to continue operations inside Saudi Arabia, warning that airports across the country could be targeted, with the exception of those in the holy cities of Mecca and Medina.
The Houthis say the attacks are in response to Saudi Arabia's support for government forces in Yemen's civil war, as well as an alleged Saudi-led air strike on Sanaa International Airport.
Saudi military coalition spokesperson Major General Turki al-Maliki said air defences had intercepted a missile near Riyadh airport on Sunday. Authorities were also investigating the fire caused by what he described as an unidentified projectile that struck Passenger Hall Four.
The escalating violence has prompted international concern, with US President Donald Trump saying Washington would make a decision on whether to launch strikes against the Houthis. UK Defence Secretary Wes Streeting has also indicated that Britain could potentially provide additional support to Saudi Arabia.
Saturday's attack was described as the deadliest single strike on a Gulf Arab country since the war involving Israel, the United States and Iran began in February.
Saudi authorities said the victims included four Saudi nationals, two Bangladeshi nationals and citizens of the United States, Jordan, Palestine, Syria, Sudan and Egypt. India's embassy in Saudi Arabia later confirmed that an Indian national had died from injuries sustained in the attack.
US Secretary of State Marco Rubio condemned the strikes and confirmed that an American citizen had been killed, while UK Foreign Secretary Ed Miliband described the attacks as appalling.
The UK Foreign Office has advised against all travel to parts of Saudi Arabia, including areas within 10 kilometres of the border with Yemen. Other Western embassies have also issued warnings to their citizens.
Meanwhile, Houthi-run Al Masirah television reported that Saudi Arabia had launched an air strike on Sanaa International Airport in Yemen. The broadcaster also reported that a residential property in the capital had been hit, killing a child and injuring six people.
Saudi Arabia has not confirmed the reported strikes, and the claims could not be independently verified.
Yemen's internationally recognised government has called for decisive action from regional and international partners in response to the attacks.
The latest escalation follows a series of deadly strikes on Saudi airports, including attacks in Riyadh and Abha. The renewed fighting comes after a temporary ceasefire between the Houthis and Saudi-led forces, brokered in 2022, collapsed in July.
Tensions have also been fuelled by developments along Yemen's Red Sea coast, where Houthi advances prompted Saudi strikes. Pro-government forces later said they had regained control of the affected areas.
The Iran-backed Houthis currently control a significant portion of Yemen's territory and a large share of its population. Saudi Arabia has expressed concern that the group's growing influence could strengthen Iran's position along its southern border.
Iranian Foreign Minister Abbas Araghchi said on Sunday that Tehran was prepared to assist in facilitating dialogue between Saudi Arabia and Yemen, referring to the Houthi administration.