The PDQ store on Lien Road in Madison was robbed early Sunday.
Police say a woman entered the store just after midnight and demanded money from the clerk. The clerk gave the woman some cash. The woman ran off. The clerk was not hurt.
Police searched the area and did not find the woman.
The suspect is described as a black woman in her 50s. She's about five feet tall. She was wearing black glasses, a black jacket, red shirt, and blue jeans.