The accident happened at Dunhams Corner Road and Tall Oaks Drive in East Brunswick around 9:00 p.m.
The victims were walking home from a Sabbath service.
Two adults and a teenager were injured. They were taken to Robert Wood Johnson University Hospital.
One of them was listed in critical condition, while the other two were listed in good and fair condition.
The driver of the vehicle remained at the scene.
Police continued to investigate the circumstances.