Colorado authorities arrested a Pueblo man this week on charges of sexual exploitation of a child, sexual assault on a child, and animal cruelty.

The charges are “in connection with the sexual assault of at least three children and several dogs,” the Pueblo County Sheriff’s Office said in a statement.

Phoenix Moncivaiz-Likes, 20, was arrested on Wednesday on a no-bond warrant and has been booked into the Pueblo County jail.

The sheriff’s office said the arrest followed a year-long investigation by the department’s Internet Crimes Against Children division. That investigation followed a tip linking child sexual abuse material to the suspect.

Detectives executed a search warrant at Moncivaiz-Likes’ home and “found child sexual abuse material along with conversations of him sexually assaulting two minors.” They also found images of bestiality on his phone and later learned of third child rape victim.

The sheriff’s office said the suspect “admitted to detectives to the sexual assaults on the children and to performing sexual acts with several dogs.”