Authorities arrested a Chattanooga woman on murder and child abuse charges after her twins, who were born with drugs in their systems, died at the hospital, according to court documents.

Tiffany Marie Roberts, 29, was arrested on allegations of first-degree murder, aggravated child abuse and viable fetus as a victim, Hamilton County Criminal Court records show.

Police responded to a call at TC Thompson Children's Hospital for a death investigation on Tuesday and learned Roberts gave birth prematurely at 23 weeks pregnant and the babies had died, according to an arrest affidavit.

Doctors said Roberts tested positive for ecstasy on the day she gave birth and admitted to using the drug, the affidavit continues.

Roberts had visited the doctor for checkups while she was pregnant, and tested positive for drugs in her system on three different dates, including cocaine, oxycodone, roxicodone, methamphetamine, and benzodiazepine, police said.

Both infants tested positive for narcotics including cocaine at the time of their birth, according to court documents.

"Based on Ms. Roberts' illicit drug use during her pregnancy, in conjunction with the medical records, the infants were subject to aggravated child abuse and neglect which later led to their deaths," the officer wrote in the affidavit.

Police arrested Roberts on Tuesday.

Roberts was being held on $1 million bond at the Hamilton County jail.

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