American officials issue 'worldwide caution' advisory for travelers amid global conflict

"Americans abroad should follow the guidance in security alerts issued by the nearest U.S. embassy or consulate," said the alert, issued on Sunday.  

"Periodic airspace closures may cause travel disruptions. U.S. diplomatic facilities, including outside the Middle East, have been targeted," it continued.

More than 70,000 Americans have left the Middle East and returned to the U.S. since Feb. 28, according to a State Department press release issued March 19.

Over 41,000 American citizens have received security guidance and travel assistance, with the U.S. government conducting 60 evacuation flights from the Middle East.

Senate Majority Whip John Barrasso, R-Wyo., accused Senate Democrats of preventing DHS from operating at a critical moment amid the conflict with Iran.

The ongoing DHS shutdown has sparked travel chaos in areas of the country, with some airports even closing security checkpoints due to callouts by TSA officers - raising concerns about "threat" levels. 

Acting Deputy TSA Administrator Adam Stahl told Fox News Digital last week the issue is not just staffing. 

He said "a variety of other streams of information, including threat [and] intelligence" input, are also part of ongoing risk assessments. 

Fox News Digital's Michael Dorgan, Eric Mack and Alex Miller contributed reporting.