A part-time lifeguard at the Ballard Pool has been arrested by police for voyeurism after staff members found a cell phone camera he set up in the staff locker room.

Seattle Police were called to the pool Monday evening after two female employees found a cell phone recording them under a pile of swimsuits in the employee locker room. Employees reviewed the video on the phone and noticed footage of the 19-year-old suspect setting up the camera. Police arrested the man a short time later.

Officials say he worked at the pool for the past two years as a part-time employee. He was not employed by any other Seattle city pool facility.

Detectives with the sexual assault unit with Seattle police are investigating the case.