ANOKA (AP) — A Minnesota man is accused of sexually abusing boys ages 13 and younger over several years.

Forty-four-year-old Chad Geyen of Ramsey is charged in Anoka County with three counts of first-degree criminal sexual conduct.

The complaint alleges Geyer met one of the boys through his association with the "Big Brothers" program.

The Anoka County sheriff's office says the case involves hundreds of offenses spanning years. Investigators interviewed four males who said they were abused by Geyen. Two of them are now adults.

The charges allege some assaults occurred at Geyen's home, his cabin and an airport.

Geyen's attorney says he has yet to look at the evidence or conduct his own investigation.

Bail for Geyen is set at $500,000, with conditions. He remains in jail.