The US State Department has issued a worldwide caution for Americans following the launch of U.S. combat operations in Iran. The Department of State has advised that Americans worldwide, particularly in the Middle East, should follow the latest security alerts issued by the nearest US embassy or consulate. Travelers are also being limited by temporary airspace closures in the region. In the United Arab Emirates, one person was killed and seven people were injured after a drone targeted Zayed International Airport was intercepted. Dubai International Airport, one of the world's busiest airports, has suspended flights and several workers were injured in a drone attack on Kuwait International Airport. Bahrain International Airport and Hamad International Airport in Qatar have suspended flight operations due to airspace closures over their respective countries. Traveler applications are encouraged to enroll in the State Department’s free Smart Traveler Enrollment Program for important updates and easier reach in an emergency.