Chattanooga Police are terming an incident at Hamilton Place Mall on Saturday night an "aggravated riot."
Police said there has been no confirmation that any shots were fired, but there was a stampede out of the mall after word spread of a gun incident.
One juvenile was injured and taken to the hospital during the panic and scramble from the mall.
Police said at 6:09 p.m., the Chattanooga Police Department "responded to reports of shots fired in the Hamilton Place Mall.
"Immediately upon arrival, Chattanooga Police received initial reports of a large fight, a male who had displayed a firearm, and reports of shots fired.
"Based on the information received, a command decision was made by the Chattanooga Police Department to evacuate the mall at that time. A search was conducted by police to ensure the security of the premises.
"Police reviewed footage of the recently upgraded surveillance video in the mall and were quickly able to confirm the fight and a suspect brandishing a firearm.
"Witnesses told police that several people shouted 'Gun!, He has a Gun!' which escalated into panic and preempted a mass movement of patrons out of the immediate area.
"During that exodus, at least one juvenile was injured and transported to a local hospital with minor, non-life-threatening injuries received after falling to the ground.
"Police were able to locate a firearm in the parking lot outside a mall entrance and were able to connect it to the incident inside the mall.
"After the review of video footage, interviews with witnesses, and a complete sweep of the mall, there is no physical evidence at this time which has indicated that a firearm was discharged during this incident.
"Members of the Violent Crimes Bureau are still investigating the incident and following up on all actionable leads.
"Police are requesting that anyone who witnessed this incident call the Chattanooga Police Department and report anything they may have seen. You can remain anonymous."