Pentagon stressed in a statement that it had landed suspicious, unidentified object over frozen waters around Alaska on Friday. Officials emphasized that they couldn’t determine what kind of object was shot down, but it was operated at height posing a menace to the civilian aircraft. Several officials expressed a view that the object shot down Friday was a balloon, but a Defense Department informed that a device fell  into pieces when it hit the frozen sea, which gives rise to concerns that the device could be a drone or baloon.