A 64-year-old man leaped to his death from a luxury apartment building in Manhattan, police said Saturday.

The unidentified man jumped from a 16th-floor window of the Tribeca Park apartment building on Chambers Street near North End Avenue, where he lived, at about 11 p.m. Friday, authorities said.

He landed in the building’s courtyard and was pronounced dead at the scene.

“I came out to smoke a cigarette, and they told me someone jumped,” one building resident, who declined to be named, told The Post. “It’s upsetting.”

It was not immediately clear why the man had jumped, though neighbors worried it may have been related to the state’s new regulation around self-isolation amid the coronavirus pandemic.