Cops blocked off a swath of Midtown Monday after reports that a man perched atop a building with a rifle, police said.
The unidentified man was on the roof of 550 West 45th Street and believed to be carrying a long gun, according to police, who were not letting anyone near the building Monday afternoon.
Police closed streets within a roughly one-block radius of the building, which is at the corner of 11th Avenue.
