An Anchorage man was sentenced to 15 years in prison for multiple sexual offenses involving two minors.

Bernard Droege, 57, pled guilty to charges of second-degree sexual abuse of a minor, unlawful exploitation of a minor and possession of child porn on June 26, 2017, the Alaska Department of Law wrote in a release.

Superior Court Judge Michael Wolverton accepted Droege's plea agreement Thursday in court -- under the condition the 57-year-old serves 10 years probation after he is released from prison and also register as a sex offender for 15 years.

"Droege’s conviction resulted from an investigation by the Anchorage Police Department’s Crimes Against Children Unit after it received a report in July 2016 that Droege sexually abused a 13-year-old," the Alaska Department of Law said. "Droege was arrested in November 2016."

APD says Droege volunteered as a volleyball coach at the Boys and Girls Club of Anchorage and worked weekends at the Holy Rosary Academy for maintenance and lawn care.

“We have evidence of all crimes we have charged him with,” APD spokesperson Renee Oistad said in an email. “None of that evidence points to any victims being related to his workplaces."