Television news images showed police and EMS crews surrounding Austin-East High School in east Knoxville.
Local 10 News reported that the school had been placed under a "hard lockdown" and that parents were told to go to the back of the campus to pick up their children.
- For folks who've been watching with us today for the hour-and-a-half or so that I've been out here, you can tell the emergency, the urgency of the initial response when I first pulled up here. Still officers trying to evaluate the situation, establish a rough perimeter, kind of where we see it right now. Initially [INAUDIBLE]
- [INAUDIBLE] here