Ann Arbor police are investigating an attempted armed robbery Thursday night outside The Beer Depot in the 100 block of East William Street, police spokeswoman Lt. Renee Bush said.

A man told police another man approached him at 11:55 p.m. and told him to hand over his cigarettes, police said.

The would-be robber pulled out a knife, but left the area on a bicycle without taking anything, Bush said.

He was described as black, 5 feet, 10 inches tall, 30 to 40 years old, and was wearing a dark blue jacket and blue jeans, police said.

Anyone with information can call the department's tip line at (734) 794-6939.