Oct. 23, 2011 (ABC News) -- ABCNEWS has learned that U.S. military personnel in three critical locations have been put on the very highest state of alert after being warned of potential terrorist attacks.
At the U.S. Air Force installation at Incirlik, Turkey, officials say “credible” and “specific” warnings have been received. The level of credibility about the warning is so high, that “even the Turks believe it,” one source told ABCNEWS, indicating the threat was very visible and believable.
Details surrounding the warnings are being closely held, but officials say the information generally involves surveillance of U.S. personnel and plans for a specific attack. The threat has grown in the last few days following initial concerns last week when U.S. military personnel said they were under surveillance.
READ MORE: ABC News