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Police later said in astatementthat no weapons were found after a search of the area.

According to the statement, all exits were opened to allow guests to evacuate as security responded.
We all ran out … climbed fences, did anything to get out,recalledIndianapolisStarwriter Rory Appleton.
Rumors of gunfire started about 45 minutes into Khalifas set.
As security responded, he and his band cut the music and left the stage.