The Atlantic Police Department reports a man was arrested Tuesday on a Polk County warrant for Sex Offender Registry Violation/1st offense. 31-year old Thomas Hyden, of Atlantic, was also arrested on a Polk County warrant for Sex Offender Registry Violation 2nd or subsequent offense. Hyden was being held in the Cass County Jail. And, 43-year old Keith Zarbano, of Atlantic, was arrested this (Wednesday) morning, for Disorderly Conduct. He was also booked into the Cass County Jail.