As the tail end of Hurricane Ida pounded the five boroughs overnight, at least eight people were killed, including a 2-year-old child and his parents who drowned in a basement apartment in Queens.

Early Thursday, New York City declared an emergency after a historic rain knocked out power and flooded streets, houses, and subways, triggering the city’s first-ever flash flood warning. Late Wednesday, the National Weather Service issued a tornado warning for areas of the Bronx.

A family was found dead inside their house on 64th Street in Flushing, Queens, consisting of a 50-year-old father, a 48-year-old wife, and a 2-year-old son.

A 66-year-old Brooklyn man was discovered dead in the basement of his Cypress Hills apartment, while a woman in her 40s was discovered dead in her house near the Horace Harding Expressway on Grand Central Parkway.

Later, a 22-year-old man and his 45-year-old mother were discovered dead in the basement of their Jamaica, Queens, home. In her Queens basement apartment, an 86-year-old lady was discovered to have drowned.

Late Wednesday, New York’s FDR Drive and the Bronx River Parkway were both submerged, causing chaos in the transportation system.

The Metropolitan Transportation Authority had to halt all services when subway rails and stations were inundated. Early Thursday, several lines were operating with limited service.

“We’re enduring a historic weather event tonight with record-breaking rain across the city, brutal flooding, and dangerous conditions on our roads,” New York Mayor Bill de Blasio said on social media after declaring a state of emergency.

New York Governor Kathy Hochul has also proclaimed a state of emergency. The National Weather Service issued the city’s first-ever flash flood warning tonight, claiming that 3.15 inches of rain fell in an hour on Central Park from 8:51 to 9:51 p.m., the highest ever recorded. Last month, Tropical Storm Henri dropped 1.94 inches there.