Conmebol has opened an investigation into the "unacceptable" scenes in which Uruguay striker Darwin Nunez clashed with Colombia fans at the Copa America in the United States.
Liverpool forward Nunez was involved in an altercation with spectators in the stands after Colombia's 1-0 win in Wednesday's semi-final in Charlotte, North Carolina.
The incident broke out in a section of the stadium where many family members of the Uruguay players were seated.
"It is unacceptable that an incident like this turns passion into violence," read a statement from Conmebol, South American football's governing body.
"On the eve of the final of Copa America, we want to reaffirm and warn that no action will be tolerated that tarnishes this global football celebration, which involves both the players and the fans present in the stadium.