A limousine carrying four sisters, other relatives and friends to a birthday celebration blew through a stop sign and slammed into a parked SUV outside a store in upstate NY, killing all 18 people in the limo and two pedestrians, officials and victims' relatives said Sunday.
The governor said the limo failed a state safety inspection, which checks for things like suspension and brakes.
Seventeen people, the driver and two people outside the store were killed in Saturday's crash.
The collision happened when the 2001 Ford Excursion limousine ploughed into an unoccupied sport-utility vehicle in a parking lot across from the intersection after failing to stop at an intersection.
On top of that, the driver "did not have the appropriate driver's license to be operating that vehicle", Gov. Andrew Cuomo said.
The vehicle was "not supposed to be on the road", he said.
US Department of Transportation records shows that the limo company, Prestige Limousine Chauffeur Service of Gansevoort, New York, has two drivers and three vehicles.
Before the disaster, the 17 birthday party guests in the limo - including newlyweds, young couples and four sisters - were headed to an upstate NY brewery.
It's the worst transportation accident in the United States since a 2009 plane crash outside Buffalo, N.Y.
The couple rented the limo with friends and family to celebrate Amy's 30th birthday.
Investigators were determining whether the regulations for limousines, whose passengers are not required to wear seat belts, are adequate. Sumwalt said there was extensive damage to the front of the limo, mostly on the driver's side. She and her three sisters - Mary Dyson, Allison King and Abby Jackson - and her husband Axel Steenburg and his brother, Rich Steenburg, all died, relatives told The New York Times. "I join all New Yorkers in mourning these deaths and share in the unspeakable sorrow experienced by their families and loved ones during this extremely hard time". "Whether or not it would have made a difference here. remains to be seen", Sumwalt said.
"They were wonderful girls", their aunt, Barbara Douglas, told The Associated Press.
State police have confirmed 18 of the victims were inside the limousine, while the other two were pedestrians standing in the vehicle park of the Apple Barrel Country Store and Cafe.
NBC News reported that Mrs Dyson's husband, Rob, also died.
The crash "sounded like an explosion", said Linda Riley, of nearby Schenectady, who was on a shopping trip with her sisters. We thank all of the first responders who have assisted, those who have reached out with kindness and love and those who continue to support us as we mourn those we lost.
Scott, 53, was identified as the driver of the limo by his twin brother, according Syracuse news station WTVH-TV.
The 19-seater limo ran a stop sign and hit a parked SUV on Saturday in Schoharie (skoh-HAYR'-ee).
The horrific limousine crash in upstate NY on Sunday tragically took the lives of multiple young couples, beloved siblings and parents to young children in what was the country's deadliest transportation accident since 2009.
Shane and Erin McGowan married in June, and her aunt said they were "two of the sweetest souls you could ever meet".
"There wasn't anything they could do there", he said. Chuck Schumer, D-N.Y., asked the NTSB to investigate limo accidents nationwide, but nothing changed beyond deeper investigations.