A deadly bus crash has been reported on I-90 near Pembroke, New York. The accident has been declared a mass-casualty incident. New York State Police confirmed multiple fatalities, including at least one child. More than 50 people were on board the bus when it lost control and flipped into a ditch. 

Local outlet WIVB reported that several air transport helicopters and ambulances arrived at the scene after the bus lost control around 12:40 p.m., veered into the median, and overturned into a ditch near Exit 48A eastbound. 

"Many people were ejected. Over 50 people were on the bus," WIVB noted, adding that the bus was returning to New York City from Niagara Falls. Many of the passengers were of Indian, Chinese, and Filipino nationality. 

Peter Cutler, the vice president of communications and internal affairs at Erie County Medical Center, said hospital staff received a "mass casualty notification" following the bus crash to prepare for dozens of patients. 

New York Governor Kathy Hochul has been briefed on the situation. 

"This is a developing story