News outlets quote Atlanta police as saying that at least three men fired several shots into the ZAC Recording studio on April 4 when there were about a dozen people inside.
One man was shot in the arm. Waka Flocka had to take cover, but was not injured.
Investigators have not said if they believe the rapper was a target and have not made any arrests. The rapper's given name is Juaquin Malphurs.
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.