ORANGE COUNTY, Fla. -- A Central Florida woman who was cleaning out her parents' home found a hidden box of photographs with images of her mother and father molesting her young daughter more than a decade ago, according to police.

Investigators said the 58-year-old grandfather, who was not identified to protect the victim, was recently moving out of his Orange County home with the help of his adult daughter.

Officers said that during the move she began sifting through some family photos.

She then found images of her daughter being sexually molested by the her parents, according to the report.

"One sheriff's department official said this is one of the most sickening things he has ever seen," Local 6's Mike DeForest said.

The girl, who is now an adult, never told her mother about the alleged incident, the report said.

Local 6 reported the man's home was recently searched for more evidence in the case.

The grandfather is charged with three sex offenses, including capital sexual battery on a child.

"Investigators said the grandmother also took part in the molestation," DeForest said. "She died a few months ago otherwise detectives said they would have arrested her too."

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