An autopsy will be done on a 25-year-old Mississippi inmate who died in a privately run prison.

Brandon Mitchell was found unresponsive in his cell Saturday at East Mississippi Correctional Facility, according to a news release from the private prison company Management & Training Corporation. The release said medical workers administered CPR but could not revive him. Paramedics arrived shortly thereafter and pronounced Mitchell dead.

Mitchell was serving a 10-year sentence for conviction of delivery of a controlled substance and attempted robbery in Harrison County. He was sentenced in December 2013.

At least 24 Mississippi inmates have died this year, according to the Department of Corrections.

At least 106 Mississippi inmates died from late 2019 until the end of 2020. Several died during outbursts of violence in late December 2019 and early January 2020.

The U.S. Justice Department announced in February 2020 that it is investigating the state’s prison system.