Three people were killed when two school buses collided in Tennessee on Tuesday afternoon.
WVLT reports that at least 20 people were injured in the East Knoxville crash on the Asheville Highway.
CNN's Jennifer Feldman reports that two of the dead were students and one was an adult.
It was also unclear what caused the collision, but first responders told the Knoxville Sentinel that one of the buses was on its side as a result of the accident.
“I heard the big bang,” said Karla Corona, a parts sales manager at a nearby AutoZone. “As soon as I rang up the customer, we saw that a bus had flipped over and another was in the middle of the road."
A call to Knoxville police was not immediately returned.
The Associated Press' earlier report is below.
KNOXVILLE, Tenn. (AP) — Two school buses have collided on a Tennessee highway, injuring at least 20 people.
Darrell DeBusk, a Knoxville police spokesman, says the three people who were most seriously injured were taken to the University of Tennessee Medical Center. At least 17 additional students were being transported to East Tennessee Children's Hospital with minor injuries.
There was no immediate word on what caused the crash or the exact condition of those who were injured.