HONOLULU -- A single-car crash that left an 18-year-old Hilo woman dead overnight appears to be tied to speed and alcohol, Big Island police said.

Authorities identified the victim as Sara Sutton.

Police found the crashed 2000 Honda two-door sedan against a macadamia nut tree at about 8:30 a.m. on Wednesday. The car crashed some time between 6 p.m. Tuesday and when the car was found, police said.

It appears Sutton's car ran off the side of Maikalani Drive near Amauulu Street in Hilo before hitting the tree.

Paramedics treated the victim and took her to Hilo Medical Center, where she was pronounced dead at 10:22 a.m.

Police ordered an autopsy to determine the exact cause of death. Investigators asked that anyone with information about Sutton's activities Tuesday evening call the department's non-emergency line at 935-3322.