He added that the limousine accident is the most deadly transportation accident to occur in the United States since a 2009 plane crash in upstate NY that killed 49 people.
The accident happened in Schoharie, which is about 270km north of New York City, on Saturday afternoon local time.
"Linda Riley of Schenectady, New York, says she was in a parked vehicle at the Apple Barrel Country Store in Schoharie (skoh-HAY'-ree) on Saturday when she heard the noise".
Relatives said the limousine was carrying four sisters and their friends to a birthday celebration for the youngest.
Jessica Kirby, the manager of the Apple Barrel Country Store, told the New York Times that the limousine was probably traveling over 60 miles per hour as it came over the hill, and that the store was crowded with visitors from out of town because of the long holiday weekend.
State police confirmed Sunday the death toll and said the crash involved two vehicles.
Calls to the Apple Barrel Country Store and Cafe were not answered Sunday afternoon.
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Emergency personnel respond to the scene of a deadly crash in Schoharie, N.Y on October 6, 2018. "They are the heroes of our small community", the post stated. "There's just a lot of confusion, so many people died", he said.
A local official said the road has always been a hazard despite improvements made by state Department of Transportation officials seven years ago.
Speaking through tears, Valerie Abeling said her niece, Erin Vertucci, was among the victims.
Douglas revealed her family's tragedy while visiting the scene of the deadly wreck in Schoharie, New York.
New York State Police is not releasing the identities of those killed until officials notify next of kin.
"I heard some screaming".
Gov. Andrew Cuomo released a statement that state police are working with federal and local authorities investigating the crash. In another post Sunday, the store said it was open for business "and could use your hugs".