Edmonton police are investigating a report of voyeurism in the change room of a recreation centre.

An 11-year-old boy told police he was in the change area at Commonwealth Community Rec Centre late Thursday afternoon when he noticed a man's arm reaching over the concrete dividing wall with what looked to be a cell phone or camera.

The boy left the change room and and reported the incident to staff.

Police said they've turned over the case to detectives in the child protection unit.