According to the Post, a D.C. police officer is among those hurt. He was evaluated for a wrist injury.
There is no official word on what caused concertgoers to rush the gates, but the ambulances cleared and the Yard Fest show continued, with Big Sean, Bone Thugs-N-Harmony and Juicy J taking the stage.
If you want to see what's hot on black Twitter, check out The Chatterati.Akoto Ofori-Atta is the editor of The Grapevine. Like her Facebook page and follow her on Twitter.