Lawrence police on Monday night were investigating the robbery of a North Lawrence grocery store.
Police said a man about 8:20 p.m. entered Chris's Market, formerly known as Roger's IGA, 608 N. Second, and demanded cash.
The clerk complied and the man left the store on foot.
No weapon was displayed and there were no injuries, police said.
The man was described as about 6 feet tall, weighing 170 pounds and 25 to 30 years old.
He was wearing a black T-shirt with no sleeves and the number 21 on the back, police said.
Anyone with information about the man or Monday night's incident is asked to call Crime Stoppers at 843-TIPS (8477).