A 24-year-old woman found dead Sunday morning inside a Truman antique shop is suspected to have overdosed on drugs, authorities said.

Mariah Lynn Miller was found by police in the basement of the store, located in the 100 block of West Ciro Street, at about 9:30 a.m. The Minnesota River Valley Drug Task Force reports that Miller's body was taken to the Ramsey County Medical Examiner's Office.

The task force said the owner of Bullseye Antiques also lives at the address.

There is no listed address for Miller and she did not work at the store, the Star Tribune reports, so it's unclear why she was there Sunday morning.

The case remains under investigation.