The Houthis said Thursday they had attacked Saudi Arabia's Ras Tanura refinery, the largest in the kingdom; the Rabigh refinery; an Aramco facility in Abqaiq; and King Khalid International Airport in Riyadh and King Fahd International Airport in Dammam, according to the Jerusalem Post.

There was no immediate confirmation from Saudi authorities. The Saudi-led coalition said it had intercepted two ballistic missiles launched toward the capital, after AFP correspondents heard at least eight explosions in Riyadh, and the Houthi-run health ministry reported 12 killed and three critically injured in attacks it attributes to Saudi Arabia on residential areas in western Yemen.