MONTGOMERY COUNTY, Texas (KTRK) -- A now-former detention officer was arrested for assaulting an inmate while working at the Montgomery County Jail, investigators said on Friday.

According to the Montgomery County Sheriff's Office, 27-year-old Miguel Cortez-Gonzales had been employed with the sheriff's office for 14 months before he was arrested on Friday in connection with the assault.

Authorities said Cortez-Gonzales was working as a detention officer at the jail when he assaulted a 25-year-old male inmate on July 24.