Little Rock Police said on Twitter that 25 people suffered gunshot wounds and three had unrelated injuries. Police said all were expected to survive.
The shooting occurred around 2:30 a.m. Saturday at the Power Ultra Lounge, a club in a two-story building downtown about 1 mile east of the state Capitol, during a concert by the artist Finese 2Tymes, CBS affiliate KTHV-TV reported.
Police cordoned off the block as crime-scene technicians gathered evidence from inside and outside the club. Glass from the club's second story windows littered the ground, along with empty drink cups.
"We do NOT believe this incident was an active shooter or terror related incident. It appears to have been a dispute at a concert," the city police posted on its Twitter account overnight.