A group of fans attending the AFC Wild Card game between the Buffalo Bills and the Denver Broncos on Sunday got into a fistfight outside the stadium.

Four Buffalo Bills fans began scrapping with each other in the parking lots outside of Highmark Stadium on Sunday afternoon.

When the video capturing the incident begins, the fans were heard in a heated argument.

Eventually, one person walked up to another and punched them in the face. A fracas ensued where, at one point, four Bills fans were swinging at each other.

One Bills fan backed off of punching another when he realized the person he was attacking was an older man.

Other fans began to step in and hold the brawlers back from each other in an attempt to diffuse the situation. The video cuts out before it's made clear if the fight ended peacefully or if authorities had to be involved.

WARNING: VIDEO BELOW CONTAINS EXPLICIT LANGUAGE AND VIOLENCE 

A group of four Buffalo Bills fans engaged each other in a fight after a Wild Card game Sunday

A group of four Buffalo Bills fans engaged each other in a fight after a Wild Card game Sunday

The fight came after Bills QB Josh Allen led the team to a dominant victory over Denver

The fight came after Bills QB Josh Allen led the team to a dominant victory over Denver

What made the fight in the parking lot so peculiar is that the Bills dominated the game and easily cruised to an AFC Divisional round berth for next week. 

Denver Broncos rookie quarterback Bo Nix only needed five plays on their opening drive to secure the first touchdown of the game on a 43-yard pass to fellow rookie Troy Franklin to go up 7-0 in Orchard Park.

The Bills then proceeded to score 31 unanswered points to reach a final score of 31-7.

Nix completed 13-of-22 passes for 144 yards and a touchdown while rushing four times for 43 yards in his playoff debut.

His counterpart, MVP candidate Josh Allen, completed 20-of-26 passes for 272 yards and two touchdowns while rushing for 46 yards on eight attempts.

Allen now has five wins in the Wild Card round - tied for the most of any starting quarterback since that round of the playoffs was introduced in 1978.

Buffalo will now host the three-seeded Baltimore Ravens in the AFC Divisional round on Sunday evening at 6:30pm ET on CBS.