The cluster of the potentially fatal pneumonia-like illness was initially detected on July 25 and has since been identified across several zip codes in Harlem.

An outbreak of Legionnaires' disease in Harlem has killed one person and sickened nearly two dozen others, New York City health officials said.

A person has died and nearly two dozen people have fallen ill as part of a Legionnaires’ cluster in Harlem, according to city health officials