The U.S. Embassy in Jordan issued the following warning to U.S. citizens:

Iranian-supported Houthis have engaged in hostilities against Saudi Arabia, including attacks on civilian airports and other critical infrastructure resulting in civilian casualties. The hostilities have the potential to escalate rapidly.

Americans traveling to or from the Middle East should monitor information about airport and airline operations.

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.

We remind U.S. citizens that Iran has attacked civilian and critical infrastructure across the Middle East, including hotels, airports, and other civilian locations.

U.S. citizens should continue to monitor information from the Jordanian government about specific threats and follow instructions, including sirens and other warnings. Please also monitor all U.S. embassy travel advisories and guidance.