A Sterling, Va., man who was allegedly operating a makeshift dental clinic out of his home was arrested Thursday night after a teenage girl reported to her family that she had been sexually assaulted while in his house, the Loudoun County Sheriff’s Office said Friday.

The sheriff’s office said that the teen told investigators that she was in the home of Juan Ramos Jacobe, 46, on Wednesday and that she had been mildly sedated to have dental work done when the incident occurred. The victim’s age and hometown were not released to protect her identity.

The teen reported the incident to her family on Thursday, and the Loudoun sheriff’s special victims unit investigated. The investigators said they found Ramos Jacobe had been operating an unlicensed dental clinic out of his home in the 700 block of North York Road since last year. Police periodically find unlicensed medical practitioners in immigrant communities.

Ramos Jacobe was taken into custody Thursday night and charged with aggravated sexual battery, object sexual penetration and practicing dentistry without a license. He was ordered held without bond in the Loudoun County jail.

Sheriff’s investigators said they are concerned there may be additional victims of Ramos Jacobe. They asked anyone with information about such incidents to call the special victims unit at 703-777-1021.