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.

A crash on Friday involving a tour bus on I-90 in upstate New York has killed and injured multiple people. X/RandomHeroWX

“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

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