A television station in Indiana says it is working with local police after someone posted child pornography to its Facebook page last week.

In a message to viewers posted last Friday, news anchors at South Bend NBC affiliate WNDU (Channel 16) said station officials temporarily removed their Facebook profile after a “horrific and disgusting image was posted to our page.”

“Our team is working with Facebook to determine the source of that image,” a station official wrote in a note to viewers, adding that local police had also been contacted to determine the image’s origins.

Station officials declined to specify what image was posted to their account, but viewers said it showed an adult man performing a sexual act on several unclothed children.

“To our over 274,000 Facebook fans, we are so incredibly sorry that you were exposed to such an atrocious image on our page,” the station said.

While the station described the incident as a computer hacking, officials at WNDU and its parent company, Gray Television, are considering other options, including the possibility that a former employee with access to the company’s Facebook page may have been responsible for the posting.

A company official who spoke with The Desk on background said the posting is believed to be an isolated incident.