PITTSBURGH (KDKA/AP) – A transit bus has been hit by an oncoming car in Pittsburgh, injuring four people.

It happened on Penn Avenue where it intersects with North Dallas Avenue.

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It appears the car crossed over the center line and crashed head-on into the bus. It’s unclear what caused it.

“And I turn and I look and boom! You hear this big collision and the ground starts to shake, you can feel the impact and you hear the reaction … people kind of making a screaming sound, or a gasping sound and I go out to look and I see the car totally mangled, pushed off to the side and the bus at a complete stop. At that point I just called 911,” said witness Akil Esoon.

Port Authority of Allegheny County spokesman Jim Ritchie says the bus driver and car driver were both taken to UPMC Presbyterian hospital. That’s the nearest facility with a major trauma center. The passengers were taken to UPMC Shadyside hospital, which would suggest their injuries were less serious than the drivers’.

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Investigators plan to review bus video and witness statements to determine what happened.

None of the injuries are considered life-threatening.

Stay with KDKA for more information.

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