The Saudi-led coalition fighting in Yemen said it intercepted a Houthi ballistic missile fired at Riyadh on Monday night, Al Jazeera reported. Coalition spokesman Turki Al-Maliki said the Houthis also fired two missiles toward Khamis Mushait, a city in the southwest, and that all three were "intercepted and destroyed."

Residents of Riyadh reported several powerful explosions moments after a text message warned of an aerial threat. Houthi military spokesman Yahya Saree said the target was King Khalid International Airport. He also claimed a drone strike on an air base at Khamis Mushait, A News reported, and again warned airlines to stay away from Saudi airports except those in Mecca and Medina.

The airport has been closed since a Houthi attack on Saturday killed 13 people and wounded more than 300. Another strike on Sunday killed one person. Saudi authorities have extended the shutdown until midnight on Oct. 17, The National reported. Etihad canceled its Abu Dhabi-Riyadh flights until Oct. 19, and Flydubai canceled Riyadh flights until Wednesday.

Saudi officials have opened an inquiry into why the country's air defenses failed to stop the barrage, two regional officials said, according to Al Jazeera. An early finding is that the Houthis first sent drones to clear a path for cruise and ballistic missiles.

The Houthis control Yemen's capital and are fighting government forces backed by the Saudi-led coalition. The coalition has carried out an air campaign against them. The fighting grew amid regional tension set off by the U.S. and Israeli war on Iran. Iranian Foreign Minister Abbas Araghchi told his Saudi counterpart that Tehran was ready to help start talks between Saudi Arabia and the Houthis, The National reported, citing Iranian state media.

What we know: The Houthis fired at Riyadh for a third straight day, and the city's main airport is closed until Oct. 17.
What we don't: Whether Saudi Arabia will widen its response, or whether Iran's offer of talks goes anywhere.