JACKSON, Miss. (AP) — Prison officials in Mississippi confirm that an inmate died over the weekend.

News outlets reported that 58-year-old Ricky Martin was at the Central Mississippi Correctional Facility near Jackson and was complaining he could not breathe. He was taken to the Rankin County hospital where he died several hours later.

Coroner David Ruth says he’s awaiting autopsy results to determine how Martin died.

Martin’s death is the sixth reported since last August at the Mississippi Department of Corrections.

Martin was serving a 60-year sentence for selling cocaine in Lowndes County.