Investigators say the vehicle was traveling west on Westover Drive when a pedestrian walked in front of the vehicle.
Quiet weather continues Monday with highs back in the upper 40s. Another Arctic blast moves in mid-week bringing some mountain snow showers and frigid temperatures.
Currently, less than 100 customers are still without power around the Danville area.
Authorities said the children -- 1-year-old Corbin Simmons, 4-year-old Alexander Simmons, 5-year-old Nicholas Simmons and 11-year-old Ian Simmons -- were last seen leaving their home in Arab, Alabama. They could be traveling in a 2003 white Ford Windstar with a license plate of 8AJ1511, according to authorities.