Corrections officials are investigating how an inmate died in her cell at a central Mississippi prison.

The inmate, 33-year-old Lisa Michelle Courtney, was found unresponsive at the Central Mississippi Correctional Facility in Pearl on Thursday morning, Rankin County Coroner David Ruth confirmed to news outlets Friday.

An autopsy is being performed to determine her cause of death, the coroner said.

Courtney and two others accused of a robbery and shooting were arrested following a manhunt by U.S. Marshals in 2017, news outlets reported at the time.