LITTLETON — State police say a 19-year-old woman died following a single-car accident in northern Maine.

Police say Kathleen Lombardo of Monticello was operating a 2011 Nissan when she lost control on a gravel road and the vehicle rolled over this morning. Lombardo, who was not wearing a seatbelt, was ejected and died at the scene.

Police say speed is considered a factor in the accident, but an investigation is ongoing.