A man walked into the Citgo gas station at 2047 Post Road just before 1 a.m. Saturday, claiming he had put a bomb in a garbage can as a way to threaten employees into turning over cash.

He walked away empty handed, however, when station employees hit the store's panic button and refused to give him the $100 he demanded. The Norwalk police K-9 brought to the scene tracked the would-be robber to Oldfield Road and Mona Terrace, while a bomb-sniffing dog from the MTA checked for explosives at the station. Neither the man nor a bomb was found.

The suspect, who concealed his identity by pulling his tee shirt up over his mouth and nose during the attempted robbery, was also wearing a black hooded sweatshirt with purple and green graphics and the logo "LRG" on the back. He's described as having a medium build, about 5 feet, 8 inches tall, 170 pounds and was unshaven.