Some Eagles and Packers fans got into an all-out brawl in the stands at Lambeau Field on Thursday night … and cops tell TMZ Sports some of the fighters were taken to jail.
At some point during the Philly-Green Bay game on "Thursday Night Football," fans in Eagles jerseys started wrestling with fans in Packers jerseys.
The brawl got pretty intense … punches and kicks were thrown — and bodies were dragged all over the bleachers.
Eventually, cops came in to break it up … and a Green Bay Police Dept. spokesperson tells us the three main culprits in the brawl were all arrested.
We're told the three — who were 37 years old, 34 years old and 32 years old — were all hit with charges of unlawful conduct at a public event.
We're told as punishment for their crimes … the guys were transported to jail — and after they bailed themselves out — they were hit with $880 tickets.
The spokesperson added NONE of the fighters were residents of Green Bay.
As for the action ON the field … the Packers lost to the Eagles, 34-27.