Secretary of State Michael Pompeo warned that Americans abroad should arrange to return home immediately.
“U.S. citizens who reside in the United States should arrange for their immediate return to the United States unless they are prepared to remain abroad for an extended period of time,” Pompeo said at a White House news conference on Friday.
“If you choose to travel internationally, your travel plans may well be substantially interrupted,” he added. “This means that all international travel from U.S. citizens should be avoided.”