An Apple Valley man in custody at the Beltrami County Jail died at the facility Sunday.
The Beltrami County sheriffs office said Hardel H. Sherrell, 27, died of an unknown medical condition.
According to the sheriffs news release: Sherrell collapsed and become unresponsive about 4:58 p.m. A corrections officer and a medical technician were present at the time.
Jail staff used CPR and an automated external defibrillator (AED). First responders and an ambulance also responded, and were unable to revive Sherrell.
The death is being investigated by Bemidji police and the Beltrami County Coroners Office with help from the Ramsey County Medical Examiners Office.
Authorities released no other information about Sherrells death.