LAIE, OAHU (HawaiiNewsNow) - Honolulu Police Department officials say she was ejected from her vehicle as it rolled through a field.
Her passenger, a 19-year-old man, was also ejected from the vehicle. He was last listed in serious condition.
Neither victim was wearing a seat belt at the time of the accident.
Emergency medical service officials responded to reports of a car accident at around 1:47 a.m. in an area fronting Gunstock Ranch. Upon arrival, they discovered the scene of a single car accident.
The 27-year-old woman, who paramedics say was driving the vehicle, was pronounced dead at the scene.
A 27-year-old man, believed to have been the passenger in the car, was taken to a hospital with serious injuries.
The cause of the crash was not immediately known, though police say a preliminary investigation revealed speed and alcohol may have been factors in the crash. Neither victim is believed to have been wearing a seatbelt at the time of the crash.