There is no official word on how many people were killed in the crash.

A tour bus returning to New York City from Niagara Falls crashed Friday, killing and injuring multiple people, police said.

It was not immediately clear what caused the crash on I-90 near Pembroke, which is about 25 miles (40 kilometers) east of Buffalo. Photos taken by bystanders at the scene showed a bus rolled over on its side, just off the highway.

“At this time, we have multiple fatalities, multiple entrapments and multiple injuries,” said Trooper James O’Callahan, a spokesperson for the New York State Police.

Several ambulances and medical helicopters transported patients from the crash.

“There was glass all over the road and people’s stuff all over the road,” Powell Stephens of Medina told The Buffalo News a

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