West Valley police were searching Friday night for a man who robbed a woman at gunpoint.

The man took an undisclosed amount of cash from the woman at an automatic teller machine in the Valley Fair Mall parking lot, said Sgt. John Pearce.

The man was last seen driving a white van, headed eastbound from the mall on 3500 South, Pearce said. He was described as a 20-year-old Polynesian man, 5-foot-10 and 160 pounds. He was wearing a navy blue jacket.