U.S. embassies across the Middle East issued coordinated security alerts over the weekend warning American citizens of escalating risks from Iran-backed Houthi militants.

The advisories, sent Sunday by missions in Saudi Arabia, Bahrain, Qatar, the United Arab Emirates, Israel, Iraq, Jordan, Kuwait, Lebanon, Oman and other locations, cautioned that hostilities could spread rapidly beyond Saudi Arabia. They urged Americans to prepare for possible flight cancellations, airspace closures and other travel disruptions.

The alerts followed a series of Houthi strikes on Saudi targets, including an October 10 attack on Riyadh's King Khalid International Airport that killed at least 13 people and injured more than 300, according to Saudi authorities. Attacks continued into Tuesday, with the Saudi-led coalition intercepting a Houthi ballistic missile aimed at Riyadh and a drone near the capital.

State Department Deputy Assistant Secretary for Press Edgar Vasquez said the warnings reflect a proactive effort by the Trump administration. "We are actively warning U.S. citizens about the very real threat the Houthis pose and urging them to heed official guidance," Vasquez stated. "These alerts are part of a proactive effort by the Trump administration to ensure Americans are aware of potential risks."

The messages also noted that Iran and groups aligned with Tehran may target U.S. interests overseas or at locations associated with the United States and Americans worldwide, including businesses and institutions. Americans were advised to monitor local media, enroll in the State Department's Smart Traveler Enrollment Program and develop contingency plans.

The U.S. has long designated the Houthis a foreign terrorist organization, citing their role in regional instability and attacks on civilian infrastructure. The current round of alerts marks an expansion of previous warnings focused primarily on Saudi Arabia.

Officials emphasized that the safety of American citizens remains the top priority amid the complex security environment in the region.