The U.S. State Department on Saturday renewed its warning for Americans to reconsider travel to and through the Middle East, citing a deteriorating security environment and the potential for unforeseen escalation.

The advisory comes after Iran-backed Houthi rebels launched a ballistic missile toward Riyadh, Saudi Arabia, over the weekend. Saudi authorities reported that their air defenses intercepted the projectile. Residents near King Khalid International Airport reported hearing an explosion and seeing a plume of smoke, according to The Associated Press. No casualties or damage have been reported.

In an X post, the State Department's Bureau of Consular Affairs stated that the security situation in the region remains volatile. "Americans currently in the Middle East should exercise heightened vigilance and be aware of potential flight cancellations, airspace closures, and travel disruptions," the bureau advised.

Officials specifically pointed to hostilities between Saudi Arabia and the Houthis, noting that "Iranian-supported Houthis have engaged in hostilities against Saudi Arabia, including civilian airports." The department warned that "this military conflict has the potential to escalate rapidly."

The warning also cautioned that "Iran and groups supportive of Iran may target other U.S. interests overseas or at locations associated with the United States and Americans throughout the world, including U.S. businesses and other institutions."

Americans traveling to or from the region were advised to monitor airport and airline operations. The State Department noted that U.S. diplomatic facilities have been targeted in the past, even outside the Middle East.

The alert is a periodic reminder and does not represent a change in the advisory status. The department has maintained a worldwide caution since February.

This renewed warning follows similar alerts issued by U.S. officials in recent months amid rising tensions in the region. In June, U.S. officials urged Americans across the Middle East to remain vigilant as tensions mounted. Previously, on August 30, the State Department maintained its "Level 3: Reconsider Travel" advisory for Oman, citing risks from armed conflict and terrorism, including the potential for drone and missile attacks from Iran.