Police are searching for a sicko who raped a young woman in a Harlem subway station on Sunday evening, according to authorities. A 21-year-old woman was inside the 125th Street and Saint Nicholas Avenue subway station around 7:40 p.m. when the unidentified man sexually assaulted her, according to the NYPD. The woman fled the station and arranged travel to a hospital for treatment, cops said. Cops released photos of the suspect wanted in connection with the rape and described him as having a