An Upstate detention officer has been arrested and fired, according to a release from the Spartanburg County Sheriff's Office.Atraus Styles was arrested Wednesday morning, according to the release.  He is charged with misconduct in office and third-degree assault and battery.A State Law Enforcement Division release said Styles hit an inmate at the Spartanburg County Detention Center.Styles was suspended immediately following the incident and an internal investigation led to Styles’ termination.SLED was called to investigate and brought the charges against Styles.Styles was being held in the Spartanburg County Detention Center pending a bond hearing.