LINCOLN, Neb. (AP) – A western Nebraska man has been arrested in a child pornography case involving children who prosecutors say appear to be as young as 3 years old.

Attorney General Jon Bruning says 58-year-old Andrew Wennberg, of Imperial, was arrested on Thursday on four counts of distribution of child pornography.

Officials say the arrest stems from a two-month investigation by a cybercrime unit into Wennberg’s sharing of online child pornography. Bruning says the images displayed the victimization of very young children. Additional charges are possible as the investigation proceeds.

Wennberg was being held in the Chase County jail.