While on board a SF Airport bound train, a female patron had her Lumina brand cell phone stolen from her pocket by a male suspect who then fled from the station via the Geneva Avenue exit. The victim saw the male take the phone and followed him into the station. The suspect was described as a black male, about 26 years old, wearing a multi-colored hat, a dark letterman-style jacket and blue jeans. Responding officers were unable to locate the suspect in the area. SFPD was provided with the description. Station video was requested.