A U.S. Navy air station in Italy faced an imminent security issue and ordered a lockdown and a shelter-in-place warning on Wednesday. Naval Air Station Sigonella, located in Sicily, Italy, was ordered to take precautionary measures because of an “ongoing situation” at the base’s entry,

A major U.S. Navy air base in Europe was locked down and personnel ordered to shelter-in-place for several hours on Wednesday after security officials became aware of a possible vehicle bomb, the Navy said.