An on-duty MTA worker was standing on the platform at a Harlem subway station on Friday afternoon when she was punched in the face, and the NYPD is searching for the assailant.

A 66-year-old MTA worker was randomly punched in the face while she was standing on a Manhattan subway platform Friday afternoon, cops said. The attacker pummeled the on-duty worker without warning inside the West 148th Street and Lenox Avenue Subway Station just after 1 p.