Panicked concertgoers caused a stampede at the Barclays Center in Brooklyn on Friday night as fears of a shooting spread through the crowd, witnesses said. Atlanta-based rapper Future had just finished performing when a loud sound reverberated through the arena.The noise sparked pandemonium as people rushed down escalators and streamed out the exits of the Prospect Heights venue.“Deadass, turned around and saw 500 people sprinting from Barclays Center after we were outside…never ran so fast in my entire life,” attendee Danny wrote on Twitter. NYPD and FDNY officials said there were no reports of gunfire and no injuries reported.Scores of concertgoers took to social media to vent their frustration after the chaotic scene unfolded.“Bro. A literal stampede just happened in Barclays,” David Amaya wrote. Barclays Center officials sought to ease frayed nerves on social media.“There were no gunshots tonight inside the arena. A loud noise during load out caused concern while fans exited the venue. Get home safely,” the arena tweeted.”u gotta live in the moment,No Regrets. Enjoy,” Future later posted on his Twitter account.