Authorities said the crash happened Friday morning near Bailey on Highway 264 in Nash County.
The victims were identified as 42-year-old April Felton, her 22-year-old daughter Brandi Rashaw, and Brandi's daughter 2-year-old Braylee Rashaw.
Officials said the family was stopped in a left passing lane when a truck in the right-hand lane tried to pass a camper, not seeing the family.
The truck collided with the car from behind, killing all three women.
NC State Highway Patrol said the incident is under investigation.
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