Kevin Bell was found unconscious on East 233rd Street in the Bronx on Sunday morning, according to US media.
A pedestrian called the NYPD and officers believe Mr Bell was struck by a car at about 3.30am.
The driver fled and the victim was pronounced dead after being taken to hospital, it has been reported.
Police said they do not yet have a description of the car.
Newry MLA Dominic Bradley has said Mr Bell was a talented Irish dancer.
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