A driver in a black BMW hit two men in South Sacramento late Monday night.
The crash happened on Pomegranate Avenue near Woody Hampton Park around 11 p.m.
CHP says four people were walking down the street when two were hit.
A 16-year-old man suffered a concussion and a fractured skull, and a 56-year-old man suffered a concussion and abrasions to the face.
Both were taken to the hospital for treatment.
CHP later arrested the female driver for a hit and run.