The 14-year-old girl critically injured when the ATV she was driving flipped and pinned her to the ground died five days after the crash.
The July 18 death of Sabrina Miller, of Glendale, Arizona, was confirmed by the Hennepin County Medical Examiner's Office on Friday.
Five days earlier, she'd been driving an ATV with her 9-year-old male cousin a passenger when it flipped near Hwy. 23 in Acton Township, Meeker County, about 50 miles southwest of St. Cloud.
The pair were pinned beneath the vehicle, though the boy, from Cosmos, Minnesota, was able to call police, telling them his cousin wasn't breathing.
Miller was crushed beneath the vehicle, with the medical examiner ruling that her death in the hospital days later was ultimately caused by suffocation.
The Meeker County Sheriff's Office continues to investigate the accident, having initially said the ATV flipped when Miller turned too sharply.