Riley County officials say five school boys are suspected of posting pornographic images of at least 10 juvenile girls online.
County police spokesman Matthew Droge said the number of girls whose photos were posted could increase as the investigation continues.
The boys are students in middle and high school. They allegedly posted the pictures in the last several months.
The Manhattan Mercury reports the police report includes several possible charges such as sexual exploitation of a child, promoting pornography of a minor and conspiracy.
Droge did not say how the boys obtained the photos. He also would not say where they were posted, other than it was not Facebook or Twitter.
School superintendent Brad Starnes says the alleged incidents did not happen at school or during school time.