A female sergeant was attacked and sexually assaulted by an inmate at the Harris County (TX) Jail Monday.

The Harris County Sheriff's Office said a 27-year-old inmate attacked the victim in an administrative office of the jail facility, KHOU reports.

The sergeant was taken to a jail clinic for treatment before being transferred to a local hospital.

“The brutal attack of our Sheriff’s Office teammate warrants a thorough and swift investigation,” said Harris County Sheriff Ed Gonzalez. “Uncovering all the relevant facts related to this alleged assault is a top priority as we seek answers and justice. All our brave employees deserve to feel safe, and we will do everything to protect them. Our team’s immediate focus is offering a range of full support to our team member.”