A 34-year-old woman who had been charged with DWI Thursday morning later died in an NYPD holding cell, police confirmed.

Officers from the Triborough Bridge and Tunnel Authority Police found Nicole Garbellotto, a Brooklyn resident, unconscious behind the wheel of her running car on Major Avenue near the entrance to the Verrazano-Narrows Bridge shortly after 6 p.m. Wednesday, SI Live reports.

Sources told the Daily News the woman was unconscious at the time, in the midst of a drug overdose, and was given a shot of naloxone by FDNY medics.

According to police Garbellotto was then taken to Staten Island University Hospital, treated, and released back into police custody. Officers moved Garbellotto to the NYPD's 120th Precinct office where she was charged with DWI and Operating a Motor Vehicle impaired by drugs just after 4:30 a.m. Thursday morning. Roughly six hours later, Garbellotto was found unconscious in her cell.

Fire Department EMS workers were called to the stationhouse at roughly 10:40 a.m., and rushed Garbellotto to Richmond University Medical Center, the Times reports. Garbellotto was pronounced dead at the hospital. No further details have been released in connection to her death, and an NYPD spokesperson confirmed an investigation is ongoing.