Rainwater left untreated in cooling towers atop city-owned Harlem Hospital fueled the Big Apple’s deadliest Legionnaire’s disease outbreak in a decade, the Rev. Al Sharpton charged Tuesday.

Lawsuit filed after a deadly Legionnaires' outbreak in Harlem, alleging negligence by construction firms and NYC.

Two construction workers are suing over workplace safety after being hospitalized with Legionnaires’ disease amid a deadly outbreak in central Harlem. Their illnesses came after working near a Harlem Hospital Center cooling tower that tested positive for the bacteria that causes the disease.

The deadly Legionnaires’ outbreak gripping Harlem has city officials in hot water — as locals accused them Friday of dropping the ball on life-saving inspections and needlessly slow-walking revealing exactly where the disease hit.

Four people have died as a result of a Legionnaires’ disease outbreak in Harlem that has sickened nearly 100 people, and officials revealed the cooling towers that tested positive for the bacteria that causes the illness — some of which are at properties owned by New York City,

A 51-year-old Queens man was stabbed multiple times in a brutal midday attack on a Harlem street Friday, collapsing outside an apartment building before being rushed to the hospital where he later died.

Cops received a 911 call for an assault in progress on W. 128th St. near Frederick Douglass Blvd. Responding officers found the victim with multiple stab wounds throughout his body.

The MTA approved a contract to extend the Q Line to three new stations, with surface work slated to begin in September.