11:48 AM PT -- The United Center tells TMZ ... "We are working closely with authorities to investigate all incidents from last evening at the WGCI Summer Jam show. It became apparent for all involved that ending the show early was in everyone's best interest as the safety of our guests and employees is a priority.
"We are thankful that initial incident reports were false and that guests exited the facility safely."
Lil Durkdid not finish his show Saturday night, because cops descended on the venue after receiving reports of an active shooter.
Durk was nearing the end of the concert at the United Center in Chicago Saturday night, when pandemonium erupted as the crowd ran for the exits.
Cops showed up with rifles, on the hunt for a shooter, but Chicago PD said it turned out to be a false alarm. Chicago is on high alert these days, where shootings have become tragically commonplace.