Police report the man approached a 27-year-old woman from behind, putting a knife to her neck and demanded money.
The attack took place this past Sunday at the Manhattan bound C train platform at Ralph Avenue and Fulton Street.
The attacker was able to steal $300 before fleeing the station.
The victim was left with minor cuts to her hands.
The individual is described as a black man in his 30s, 6'0" tall, who was last seen wearing a black jacket, grey hooded sweatshirt, black pants, black gloves and red sneakers.
Anyone with information regarding this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477).
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