MANCHESTER, N.H. (WHDH) - A New Hampshire is facing serious charges after police say he sexually abused an 8-year-old child who he was living with.

Alexander Mathieu, 25, of Manchester, is charged with aggravated felonious sexual assault. He’s accused of assaulting his girlfriend’s daughter.

Police say a Manchester School District employee alerted DCYF last week about a potential sexual abuse case involving a student. According to police, the counselor “knew something was amiss after the little girl made several statements to him.”

The counselor reported his interaction, which prompted an investigation. Detectives interviewed the victim, gathered information and identified Mathieu as the suspect.

Police say Mathieu had been living with the victim and the victim’s mother for seven years.

The child has since been placed in the care of a family member.

Mathieu was arraigned Monday in Hillsborough County Superior Court and ordered held on $20,000 bail.

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