The deadly Legionnaires’ disease outbreak in Harlem continues to cause concern for those living in the area as more details about its origin are released.

A Legionnaires’ disease outbreak in New York City has left 70 people sick and three dead. Officials suspect cooling towers to be the source of the Legionella bacteria.

Three people have died and at least 67 people have been diagnosed with Legionnaires’ disease in a cluster that broke out in New York City last week.