South Carolina authorities say they have charged both the hit-and-run driver who struck and killed a 4-year-old girl and the grandmother who was pushing the girl across a highway in a stroller.

Investigators say Emily Hall was killed Friday night as she was being pushed across state Highway 51 in Florence.

News outlets quote state police as saying that 39-year-old Eric Snowden drove away without stopping. He has been charged with leaving the scene of a crime involving death.

Troopers identified the grandmother as 55-year-old Priscilla Clendenin. They say she was drunk while pushing the stroller and has been charged with unlawful neglect of a child.

The news outlets didn't say if either Snowden or Clendenin had a lawyer.