A woman died of an apparent drug overdose inside a southern Minnesota business after closing time, authorities said.

Mariah L. Miller, 24, was found by emergency responders in the basement of Bullseye Antiques in Truman, according to the Minnesota River Valley Drug Task Force.

“First responders suspected the death to be drug-related,” a Sheriff’s Office statement read.

Autopsy results from the Ramsey County Medical Examiner’s Office are pending.

The store on W. Ciro Street in downtown was closed at the time, said Jeff Wersal, who also is commander of the drug task force.

Miller did not work at the store, Wersal said. “We are still trying to determine why she was there,” he said.

Wersal did not say where Miller lived, but court records show she had lived in that part of the state.