Nicki Minaj -- Crazy Brawl At Concert Brings Show To An End

2:26 P.M. PST -- Law enforcement sources tell TMZ one 22-year-old male was arrested for assaulting a security guard. We're told the show was not cut short but the incident happened towards the end.

A Nicki Minaj concert came to an abrupt end Friday night after fans started an all out brawl.

Eyewitnesses at the show say that near the end of Minaj's set in Concord, CA audience members began to push and shove and that's when things got crazy.

You can see in the video -- Nicki witnesses a fan get pepper sprayed by another person and she invites her onto the stage. Several people who were there tweeted the show came to an end shortly after that.

It is unknown at this time if any arrests were made.