UPDATE: A second Houthi strike hit Riyadh's main airport within 24 hours and Saudi Arabia vowed a 'serious response,' sharpening the risk of direct U.S. military involvement and further oil-market disruption flagged in yesterday's coverage.
King Khalid International Airport in Riyadh was struck for the second time in 24 hours on Sunday, a day after a missile attack on the same terminal killed 12 to 13 people and wounded more than 300, according to the AP and BBC. Saudi officials said a projectile caused a fire in a passenger hall; the airport remained closed and Riyadh schools moved online. Yemen's Houthi rebels claimed the attacks, saying they used ballistic and cruise missiles along with drones, and also struck oil facilities and Dammam airport in eastern Saudi Arabia.
The Houthis say they are retaliating for Saudi support of Yemen's government forces and an airstrike on Sanaa's airport, which the Yemeni government claims it carried out to block an unauthorized Iranian flight. A four-year informal ceasefire began unraveling in July when the Houthis declared a 'maritime embargo' against Saudi Arabia. The group has warned airlines and travelers to avoid all Saudi airports except those in Mecca and Medina, and vowed to continue 'escalating operations deep inside Saudi Arabia.'
President Trump said he is weighing direct U.S. military involvement against the Houthis and planned to speak with Saudi Crown Prince Mohammed bin Salman. Saudi Arabia has reportedly asked France, Britain, Pakistan and Egypt for air defense support, as its own missile interceptor stockpiles run low. The crisis threatens global oil supplies and shipping through the Bab el-Mandeb Strait, and a deeper U.S. intervention could carry political risk for Trump's party ahead of the midterms.
Editor’s rationale — Significant geopolitical escalation with material operational consequences (airport closure, potential U.S. military intervention under Trump consideration, regional air defense strain) affecting global energy markets and shipping lanes, but lacking definitive institutional policy changes or primary source confirmation of latest attack responsibility.