There were equally ugly scenes at the Kenan Memorial Stadium in Chapel Hill, as North Carolina (NC) State defeated the University of North Carolina (UNC) 35-30 for its fourth consecutive win in the rivalry game. Running back Hollywood Smothers punched in a two-yard touchdown to give NC the lead with 25 seconds left in the game.

Rivalry week matchups are always heated with tensions and resentments building. But four annual clashes ended with fights between opponents when the winning road team attempted to plant a flag on the home field of their adversary to punctuate a victory.

Another fight broke out in college football on Saturday, as Florida and Florida State scuffled after the Gators planted a flag at midfield:

Ohio State and Michigan, one of the sport’s most heated rivalries, started the day’s chaos when a fight broke out after the Wolverines upset the No. 2 Buckeyes. A group of Michigan players attempted to plant a UM flag at midfield at Ohio Stadium. The fight got so heated that multiple law enforcement agencies had to step in and break it up.

Flag plants, profanities, fights and other chaos ignited rivalry week throughout college football. Here is a breakdown of all the heated action.