A karate instructor from Hamilton is one of two people charged in an alleged sexual assault near Peterborough.
Police say a woman came forward last month to report a sexual assault that took place at a karate tournament in Lindsay in 2010.
Investigators say she was 16 at the time of the alleged incident.
39-year-old Michael Ryan Kowtaluk of Hamilton and 39-year-old Shannon Kaye of Welland are each charged with sexual assault and sexual exploitation.
Police are asking anyone with information to contact them.
(with files from the Canadian Press)