A 36-year-old Port Arthur man died Tuesday night after “experiencing medical issues” at the Jefferson County Correctional Facility, authorities said.

The Jefferson Country Sheriff’s Office announced Jeremy Scott, an inmate at the correctional facility, was taken to the infirmary after he began experiencing medical issues.

The Sheriff’s Office said Scott began experiencing medical distress and became unresponsive.

“Medical personnel immediately initiated CPR,” a release from the Sheriff’s Office said. “The inmate was transferred by EMS to a local hospital, where he was pronounced deceased.”

Authorities said State Jail Commission Standards and JCSO protocol necessitated notification of the Texas Rangers, who are conducting an investigation.

Authorities said Port Arthur Police had arrested Scott for aggravated robbery.