Thunder Bay police have charged a 68-year-old Thunder Bay man after an investigation into a sexual assault that occurred in 1978.

Police said the investigation began in November, and led to a number of other victims coming forward. The victims, police said, were males between the ages of 8 and 19.

The assaults occurred at the residence of the accused, while he was in a position of authority, police said.

The accused, who police identified as Stephen Alan David Young, was arrested Wednesday.

He's facing a number charges:

Six counts of sexual assault

Sexual interference

Sexual exploitation

Indecent assault

Threats

Assault

Young was released from custody with conditions, and is due back in court on Feb. 14, 2020.

The investigation is ongoing. Anyone with information is asked to contact police at 684-1200, or Crime Stoppers at 1-800-222-8477, or online at p3tips.com.