Air Force officials are investigating after a female non-commissioned officer became the target of an online smear campaign using pornographic images, according to the Air Force Times.

The images appeared in a Facebook comment thread below a recruiting video that featured the NCO. The face of the woman in the pornographic images was blurred, but a commenter claimed it was the NCO and that the NCO starred in online porn.

Air Education and Training Command officials said the images were not of the NCO, and she and her husband are not being investigated. Authorities said they did not know why the NCO was targeted.

The woman has not been named to protect her privacy. She declined comment to the Air Force Times.

“This story is very concerning,” AETC spokesman Col. Sean McKenna told the Air Force Times. “It’s another example of someone taking it on themselves to shame someone online.”

Officials are investigating a former airman who previously posted pornographic images on the Air Force Recruiting Service’s Facebook, but the Air Force has not disclosed the name of the suspect.

“Who knows where the investigation will lead us,” McKenna said. “I’ve never seen one like this.”