A transit creep fondled a woman as she was exiting a subway station in Midtown, police said Thursday.

The 27-year-old victim was climbing the stairs from the 49th Street subway station at 7th Avenue and West 49th Street shortly after 1:30 a.m. Monday when the man came up from behind her and grabbed her crotch, cops said Thursday.

The groper then scurried back into the subway station, where he was captured on camera.

The woman was not injured.

Police described the man as around 25 years old and said he was last seen wearing black sneakers and a T-shirt with the American flag on it.