A missile strike on King Khalid International Airport in Riyadh killed 12 people and injured more than 300, prompting Saudi authorities to extend the facility's closure until at least 9 p.m. Sunday.

The Saudi-led coalition blamed the attack on Yemen's Iran-backed Houthis, calling it a “fully-fledged war crime” and vowing a firm response. The blast struck terminals 3 and 4, which handle domestic flights, and left no military facilities in the complex. Victims included four Saudi citizens, two Bangladeshi nationals, a Palestinian, a U.S. citizen, an Egyptian, a Jordanian, a Syrian, and a Sudanese. Among the dead was Azza Ramzy, 28, an Egyptian flight attendant working for the Saudi carrier Flybas.

U.S. President Donald Trump said he was evaluating American involvement in retaliatory strikes. “We may. We’re going to look at it,” Trump said. “We just found out about the recent attack. So we’ll make a decision. We move very quickly.” He planned to speak with Crown Prince Mohammed bin Salman to coordinate a response. U.S. Secretary of State Marco Rubio also acknowledged the American casualty and condemned the strike.

The assault marks a sharp escalation in a conflict that resumed in July after a 2022 ceasefire collapsed. The Houthi-run Health Ministry reported that coalition strikes killed 91 Yemenis and wounded 168 over five weeks, noting that 60% of those killed were women and children. Regional aviation has already faced severe disruption, with airlines including Air India, FlyDubai, Lufthansa Group, and Pakistan International Airlines suspending flights to Riyadh. Saudi Arabia has reportedly asked France, Britain, Pakistan, and Egypt for air defense support as its stock of missile interceptors dwindles. The Houthis have warned global carriers about operating in Saudi airspace, framing it as an active military zone.