CONCORDIA, Kan. (AP) — The Cloud County Health Center is warning residents to beware of a woman claiming she has an appointment to check medical equipment at their homes.

The Salina Journal reports the woman pretends to be associated with a medical-related business or organization to gain entry. After she leaves, residents have discovered prescription drugs missing.

LeRoy Dickinson, the center’s vice president of operations, marketing and public relations, says the impostor has visited the homes of at least three to four elderly individuals in the Concordia area. Dickinson says it appears she’s working alone.

Dickinson says the scam has been reported to Concordia police and is under investigation. No arrests have been announced.

Dickinson says any suspicious activity should be reported to authorities.