Tap to see video if viewing on News app.
The crown had barely settled on Carol Toledo's head when Hayalla ripped the crown away and threw it to the ground.
Not knowing what to make of the moment, most of the other contestants watched uncomfortably as the scene played out.
As she made her exit, Hayalla paused to wave and blow kisses to the crowd.
The pageant's offices did not immediately respond to ABC News' request for comment.
ABC News and the Associated Press contributed to this report.