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

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.

A fifth person has succumbed to a deadly vapor that has crept up on New York City. Legionnaires’ disease, a kind of pneumonia that spreads from toxic water vapor, has also infected 108 people since the outbreak began at the end of July, according to the New York City Health Department on Monday.

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.

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.