Holly Yan and Madeleine Thompson, CNN - At least 20 people were killed in a traffic accident in upstate New York, New York State Police said Sunday.

The two-car crash happened shortly before 2 p.m. Saturday in Schoharie, town supervisor Alan Tavenner said in a statement. One of the vehicles involved was a limo, the National Transportation Safety Board said.

The NTSB tweeted Sunday morning that it is sending a team to investigate.

The crash happened outside an Apple Barrel Country Store ^and^ Cafe.

Nearby resident Bridey Finnagen said the crash was loud enough to hear from down the road.

"I heard a loud bang. I came out my front door to see what was going on," Finnagen told CNN affiliate WTEN.

"I saw a lot of people here at the Apple Barrel out in the parking lot. Then I heard screaming. Then I saw this large van, a very unusual looking vehicle, out here in Schoharie in the bushes and really wrecked, hit a tree."

The cause of the crash remains unclear.




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