A 26-year-old massage therapist is accused of groping two customers inside a Gwinnett Place Mall salon, according to police.

Chao Chen Yang, of Duluth, was arrested Thursday and charged with aggravated sexual battery, a felony, and two counts of misdemeanor sexual battery, according to Gwinnett County police. He was being held without bond Friday night in the Gwinnett jail, booking records showed.

The first of two incidents happened in December, police told Channel 2 Action News. No details were released regarding the second victim. It’s possible there are additional victims, police said.

“Any person, man or woman, who’s gotten a massage, they know what’s appropriate and inappropriate and they know where they should and should not be touched,” Cpl. Michele Pihera said. “If anybody else is a victim of this suspect, Mr. Choa Yang, or anyone else at the massage parlor or any other location, please contact our department.”

Yang worked at Professional Body Works, where he was arrested Thursday.

Yang is not a registered massage therapist, according to the Georgia Secretary of State’s Office.