Multiple people, including one child, are dead after a tour bus crash shut down all lanes of traffic on a highway Friday afternoon.

The New York State Police told drivers to expect heavy delays after the accident shut down I-90 in Pembroke, New York, near Buffalo.

Several injuries were reported, with multiple people trapped under the bus, according to WIVB.

Passengers were also ejected from the bus, the outlet said.

Police said that 52 people were on board when it crashed, according to Spectrum News.

It is still unclear how many people were hurt.

The president of Mercy Flight, an emergency air transportation service that brings patients to hospitals, said that helicopters were making multiple trips to the scene.

Two injured children and two injured adults had been flown via helicopter to local hospitals, the New York Times reported.

“I’ve been briefed on the tragic tour bus accident on the @NYSThruway,” New York Governor Kathy Hochul tweeted after the accident.

“My team is coordinating closely with @nyspolice and local officials who are working to rescue and provide assistance to everyone involved.”

Erie County Executive Mark Poloncarz called the crash a “serious mass casualty bus accident” in an X post.

Social media photos showed emergency vehicles crowded on the entire interstate near the wrecked bus.

New York State Attorney General Letitia James called the crash “heartbreaking.”

“I’m praying for everyone impacted. Grateful to our first responders on the scene working to rescue and help people.”