Police said the gunshot victims, who were rushed to the hospital, were teenagers or in their early 20s. Two people suffered life-threatening injuries.
Some of the victims weren’t directly involved in the exchange of gunfire among “multiple parties,” police told WTVC.
One person was detained shortly after the shooting.
The shooting reportedly occurred on Cherry Street in Chattanooga’s downtown area.
National attention has turned toward gun violence after several mass shootings in the U.S., including the Uvalde, Texas, school shooting that left 19 children and two teachers dead last week.
The Uvalde attack was the second-deadliest school shooting in the U.S. following the Sandy Hook Elementary School tragedy in 2012, which left 26 dead.
A shooting at a Buffalo, New York, supermarket left 10 people dead earlier this month.
CORRECTION: A previous version of this story stated incorrectly that the shooting occurred near downtown’s Mellow Mushroom pizza restaurant.