DUBAI/RIYADH, Oct 11 (Reuters) - One person was killed and nearly a dozen hurt in a new attack Riyadh's international airport on Sunday, Saudi authorities reported, a day after a strike claimed by Yemen's Iran-aligned Houthis that killed 13 people and wounded more than 300.
Saudi-led coalition forces in Yemen said an unidentified projectile had targeted Riyadh's international airport Terminal 4 on Sunday, causing a fire.
Eleven people were wounded in addition to the fatality, the Saudi civil aviation authority said.
Coalition forces also said Saudi air defences had intercepted a cruise missile in the vicinity of King Khalid International Airport.
Emergency alerts were also issued in Abha, in the south, early on Monday but the danger had since passed, the Saudi Civil Defense said.
In a televised speech on Sunday, Houthi military spokesperson Yahya Saree claimed responsibility for Saturday's attack and said the group had also struck the airport in Dammam in Saudi Arabia's Eastern Province and two facilities of Saudi oil giant Saudi Aramco.
An eyewitness aboard a taxiing aircraft at Dammam told Reuters that around 8:30 p.m. (1730 GMT) on Sunday, they saw a projectile strike the tarmac beside several parked aircraft, causing a fire.
Flight-tracking website Flightradar24 showed several delays and cancellations on Sunday for arrivals and departures at Dammam airport, the kingdom's third-largest.
The Houthis earlier on Sunday had renewed their warning against using Saudi airports.
"We urge everyone to take our warnings seriously, and Saudi Arabia bears responsibility for any failed interceptions," the group said.
Britain's embassy in Saudi Arabia in a post on X advised British citizens against all but essential travel to Jeddah, Dammam and all airports in the kingdom except the airport in Medina.
Saudi Arabia has recently stepped up its military involvement in Yemen, launching strikes against the Houthis and backing a government counteroffensive after the Houthis seized strategic territory along the Red Sea coast last month.
"Unless the Saudi enemy stops its aggression and interference in Yemen, worse is yet to come, God willing," Yemen's Houthi-run foreign ministry said in statements carried by Al Masirah television.
US President Donald Trump said on Saturday the United States was considering joining Saudi strikes on the Houthis in the conflict, a spillover from the wider war with Iran that the US and Israel launched in February.
In a post on Telegram, Iran's foreign minister Abbas Araqchi said he told his Saudi counterpart that Tehran was ready to help facilitate dialogue between Saudi Arabia and Yemen.
A five-day conference of international energy organization WPC Energy opened as planned on Sunday at a convention centre about 10 km (6 miles) from the Riyadh airport, the Saudi energy ministry said.
A ministerial meeting of the International Energy Forum also went ahead, according to a media advisory from the ministry.
Italy's energy minister, Gilberto Pichetto Fratin, whose country was co-hosting, had said on Friday he would participate remotely via video link.
She was supposed to return to Berlin from Riyadh on Monday but the ministry said it appeared likely her flight would be unable to take off.
Separately, Saudi authorities announced that in-person classes at schools in Riyadh would be shifted to remote learning from Sunday until Thursday.
In Saturday's attack, the dead included four Saudis while the remainder were foreign nationals, Saudi authorities said.