TRAVIS COUNTY, Texas — A 43-year-old man died Wednesday after he was found unresponsive in his cell at the Travis County Jail, according to the Travis County Sheriff’s Office.

Christopher Ramon of Austin was found unresponsive around 9:05 a.m. during a nurse’s rounds, TCSO said.

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The nurse immediately began CPR, with corrections staff assisting until Austin-Travis County EMS and firefighters arrived and continued lifesaving efforts.

Ramon was pronounced dead at 9:51 a.m.

According to TCSO, Ramon had been booked into the jail Tuesday, one day before his death, on a parole violation.

TCSO’s Internal Affairs Unit and Criminal Investigations Division are investigating the death along with the Texas Rangers and Travis County Medical Examiner’s Office. The sheriff’s office said those investigations are standard procedure following a death in custody.

An autopsy was conducted Thursday. The final autopsy report, including Ramon’s cause and manner of death, is pending.