Police have identified the camp counsellor from Ancaster charged after an alleged sexual assault at a summer camp in Norfolk County, Ont.

The incident occurred at Ryerson Camp "in the early hours" of Thursday, according to OPP Const. Ed Sanchuk, and staff notified police in the afternoon.

It involves a child between the age of 12 to 17, police said. No other details about the victim were released.

"It's extremely shocking," Sanchuk said. "With that in mind, the camp contacted police and did their due diligence."

Aaron Robert Howe, 22, of Ancaster, is charged with sexual assault and sexual exploitation.

The investigation is ongoing.

Camp officials are not commenting.

Police say they are concerned there may be other victims. Parents and caregivers of campers are asked to speak to their children and call police if they have any information.

Anyone with information is asked to call Norfolk County OPP at 1-888-310-1122 or Crime Stoppers at 1-800-222-8477.