The woman, identified as 23-year-old Courtney Danielle Rosman, was transported to WakeMed and pronounced dead.
Police questioned several people but did not take anyone into custody. According to a police spokesperson, the case is not being investigated as a homicide.
A handful of neighbors also spent the evening at the scene; many knew the woman but were not sure what had happened.
Authorities remained on the scene Sunday evening and say the investigation in ongoing.