Photos and videos of triangle-shaped objects blinking and moving through the clouds were taken by Navy personnel, Pentagon spokeswoman Sue Gough said in a statement to CNN. She also confirmed that photos of three unidentified flying objects -- one "sphere" shaped, another "acorn" shaped and one characterized as a "metallic blimp" -- were also taken by Navy personnel. "As we have said before, to maintain operations security and to avoid disclosing information that may be useful to potential adversaries, DOD does not discuss publicly the details of either the observations or the examinations of reported incursions into our training ranges or designated airspace, including those incursions initially designated as UAP," Gough said.