A Dallas woman allegedly showing symptoms of withdrawal has died after becoming unresponsive while being held at the Polk County Jail earlier this week, according to jail officials.

The incident happened at approximately 3 a.m. on Wednesday, Sept. 9. Officials identified the woman as Andrea Nicole Sevcech, 43, of Dallas.

Sevcech had been in custody for about two days and was being monitored by jail staff for apparent signs of withdrawal, officials said. She had been arrested on a charge of possession of methamphetamine and was medically cleared for admission to the jail by Polk Medical Center.

According to jail reports, jail staff were assisting Sevcech with a shower when they noticed she had become unresponsive after sitting in a chair.

Jail staff immediately called 911 and began emergency treatment, including CPR, use of an automated external defibrillator and the administration of Narcan, officials said.

Emergency medical personnel arrived and took over life-saving efforts before transporting Sevcech to an area hospital for further treatment.

Officials initially reported that the inmate had been released from the jail’s custody while hospitalized and that they were unable to confirm her condition. Authorities have since confirmed that Sevcech died at the hospital.

The Polk County Jail continues to review the incident. Additional information is expected to be released as it becomes available.