Transcript for Video shows teacher calming pit bull after school attack
terrifying scene inside a school in Oklahoma. A pit bull getting into the school and authorities say attacking children, third and fourth graders. Several were take on the the hospital, and now body cam video tonight showing how first responders and a teacher helped stop the dog. Here's ABC's kayna Whitworth. Is it in the school? Yes! Reporter: Tonight, this police body cam footage showing the frantic moments -- Get in the classroom now! Reporter: -- Moments after a teacher tackled a pit bull that ran into a playground where students were outside for recess. This wild put bull got loose and it's like attacking the kids. There's four, maybe five kids that said they were bit. Reporter: More than a dozen children were injured. Five taken to the hospital by ambulance. 8-year-old Alexander bit in the leg. He was like kind for a minute but then he got rough and he started biting people. Hold on, hold on. Just in case it slips out. Reporter: Officers finally able to leash the pit bull and lead it out of the school. Tonight, police still looking for the dog's owner. David, all of those children are going to be okay. Officials think the pit bull got onto school grounds through a gate that had been left open. David? Kayna Whitworth, thank you. There is an alarming new
This transcript has been automatically generated and may not be 100% accurate.