A traffic accident involving a bus on the New York State Thruway in Pembroke, N.Y., caused multiple injuries on Friday and shut down part of one of western New York’s main highways, officials said.

Detailed information about the crash, including the number of people involved, was not immediately available. Francis A. Riccobono, a spokesman for the Genesee County Sheriff’s Department, said emergency services workers were rushing to the crash site, about 30 miles east of Buffalo.

Gov. Kathy Hochul said in a statement posted on X that she had been “briefed on the tragic tour bus accident” and that her office was “coordinating closely” with the New York State Police and other agencies responding to the crash.

Margaret Ferrentino, president of Mercy Flight, which provides emergency air transport to hospitals, said the organization’s helicopters were making multiple trip from the crash site to local medical centers.

By 2 p.m. , helicopters had taken two injured children to Oishei Children’s Hospital in Buffalo, one adult to Erie County Medical Center in Buffalo, and another adult to Strong Memorial Hospital in Rochester.

“I think we will be busy for a while here,” Ms. Ferrentino said. “It is a multi-agency response, both air and ground.” She added: “I pray for the victims and for the safety of the responders.”

This is a developing story and will be updated.