On the 21st the U.S. mission in Saudi Arabia issued a security alert saying Houthi forces have continued attacks on Saudi civilian airports and other critical infrastructure, causing civilian casualties and major travel disruption; the mission warned these hostile actions could rapidly escalate and spread. U.S. citizens were advised to follow nationwide mobile alerts issued by Saudi civil defense. U.S. government personnel in Saudi must obtain special authorization from the mission chief before

On the 21st the U.S. mission in Saudi Arabia issued a security alert saying Houthi forces have continued attacks on Saudi civilian airports and other critical infrastructure, causing civilian casualties and major travel disruption; the mission warned these hostile actions could rapidly escalate and spread. U.S. citizens were advised to follow nationwide mobile alerts issued by Saudi civil defense. U.S. government personnel in Saudi must obtain special authorization from the mission chief before using any Saudi airport. The mission highlighted risks of airport strikes, airspace closures, flight cancellations and travel disruption and urged extreme caution for anyone using Saudi airports.