BANGOR — A former Maine kindergarten teacher arrested in January on child pornography charges is now facing federal charges.

On Wednesday, 41-year-old Rob Mocarsky of Jackman pleaded not guilty in federal court in Bangor to charges of producing and possessing child pornography. He’s also facing state charges.

The Bangor Daily News says that police found hundreds of images of school-aged girls on Mocarsky’s computer, images of his students and at least one photo of a girl in his class with a bathing suit bottom pulled down.

The investigation that led to Mocarsky’s arrest began in December after a mother complained about photos Mocarsky took of her daughter.

Mocarsky began working at the Forest Hills Consolidated School in Jackman in 2002.

If convicted, he could get 30 years in prison.

He’s free on bail.