US embassies in countries in the region warned of an “unexpected” escalation in the Middle East, and advised American citizens to be “extremely cautious and raise their level of vigilance.” In detail, warnings were issued by US embassies in the countries of the region, published on their social media sites, talking about “the possibility of an unexpected escalation,” and saying that American citizens currently in the Middle East should “exercise extreme caution, raise their level of vigilance, and prepare for the possibility of flight cancellations, temporary closure of airspace, and travel disruptions.” The warnings, issued under the title “Security Alert,” called on American citizens outside the Middle East to seriously reconsider traveling to or through the region. She said that the situation "is still witnessing rapid and volatile developments." “We should also be prepared for the possibility of travel disruptions or airspace closures at any time and without prior notice,” according to the text of the warning. The warnings spoke of the possibility that Iran and loyalist groups would target other American interests abroad, or sites linked to the United States and American citizens in the world, including American companies and other institutions. The warning advised American citizens to “maintain a high level of preparedness,” urged them to follow the media, and adhere to the instructions of local authorities. The text of the warning said: “In the event of any attack, please take shelter in a safe place and avoid approaching debris or falling objects,” advising people to avoid all areas witnessing heavy security deployment, and urging them to be “aware of their surroundings.” He called on Americans, in the event of an attack, to identify the location of the nearest shelter or safe site, and to search for a safe place inside the home or in another building, while “maintaining a stock of food, water, medicine, and other basic supplies.”