Multiple people were killed and others injured on Friday when a tour bus carrying passengers home after a trip to Niagara Falls crashed in New York state, officials said.

“There are many serious injuries, and as was just announced by New York State Police, there are multiple fatalities,” Mark Poloncarz, the Erie County executive, said on X.

A state police spokesman said there were “multiple fatalities, multiple entrapments and multiple injuries”.

All 52 passengers were “ejected” or trapped in the crash, police said.

Early reports said the tour bus had rolled over near Pembroke, just over 30 miles east of Buffalo.

The passengers were mostly Indian, Chinese or from the Philippines, and had travelled from Niagara Falls. The bus was on its way to New York City, WIVB reported.

Authorities in the area said they were preparing for a “mass casualty incident”.