Officer say they were called to the store, Greenline Cellular and Repair, at 6 p.m. by people at the store who said a man came in and displayed a black handgun, demanded money from the clerk, then ran off.
Police say they are searching the area for the suspect.
He is being described as possibly Hispanic, 5'10" tall, heavier build, mustache and goatee, wearing a light blue T-shirt and tennis shoes.
Anyone with information is urged to call Crime Stoppers at 343-COPS.
Few details are available right now, but this story will be updated as more information becomes available.