A rescue operation is underway after a collision involving a tour bus and a semi-truck in Upstate New York on Friday, officials said. The "serious crash" occurred on Interstate 90 in Pembroke, near Buffalo, according to New York State Police. Images from the scene showed the bus on its side and a large emergency response.

Multiple people were killed Friday when a charter bus returning to New York City from Niagara Falls overturned, according to New York State Police.