According to an incident report, deputies were dispatched to the parking lot of the Deans Bridge Road Walmart around 2:30 a.m. where a 28-year-old Hephzibah woman said a man demanded her purse at gunpoint.
He was last seen fleeing in a small silver vehicle.
The robber has been described as a black male around 5-foot-6 and 160 pounds with shoulder length dreadlock hair. He was wearing a gray sweater and dark shorts.
Investigators are reviewing surveillance videos.