Several children witness a battle break out amongst 49ers fans during a preseason game.

An unpleasant incident developed in the fans during Saturday's San Francisco 49ers preseason game at Levi's Stadium. 

During the game versus the Denver Broncos, several Niners fans got into a massive brawl and had to be broken up.

The video begins with at least three people throwing fists, and it's unclear what initiated the fight.    

‘Bold’ Cowboys Trade Proposal Sends Highly Paid WR to Packers

Two supporters, one in a Steve Young jersey and the other in a Jerry Rice jersey, appear to have been involved.

At least three youngsters witnessed the conflict up close and personal. 

After one supporter was removed, the remaining two threw multiple haymakers; the man in the Rice jersey and another in a white shirt. 

Cowboys Land Chiefs' Disgruntled $80 Million Star in Trade Proposal

In the end, security intervened, but not before the man in the white shirt emerged from the melee bloodied and with a ripped collar.

From the looks of it, the fight started when the supporter wearing the white shirt and the fan wearing a Young jersey had a disagreement.

THANKS FOR WATCHING

6 most powerful zodiac sign couples