MILTON — A 20-year-old Rochester woman was taken by helicopter to Maine Medical Center after she was ejected from her car on Route 16.

Emergency crews were called to the Spaulding Turnpike around 1:30 p.m. Sunday for a reported roll-over accident. There, they found the driver and sole occupant of the car, Kynsra Johnson, had been ejected in the accident. The woman was reportedly about 30 feet away from the crashed car, fire officials said.

A medical helicopter was called in and within half an hour she was taken to Maine Medical Center for treatment of serious injuries.

Police have determined her car rolled over several times after leaving the roadway. The exact cause of the crash is still under investigation.