MENASHA, WI (WTAQ) - The search is on for a suspect in an overnight gas station robbery in Menasha.

Police say they were called around 3 a.m. Thursday to the Midway Marathon at 1492 Appleton Road. They say the robber walked in and demanded money from a worker. The robber then got away with an undisclosed amount of money.

The suspect is described as a black man between 18 and 25 years old, around 5'8" and weighing 160 to 170 pounds. He was wearing a blue vest, black shirt, blue jeans, a bright green backpack and a hat that looked like a lion head.