The Pittsburgh Steelers and Cleveland Browns have each been fined $250,000.
Also, 3 players, including Cleveland's Myles Garrett and Larry Ogunjobi, and Pittsburgh's Maurkice Pouncey - have been suspended without pay for their actions in Thursday night's game.
Garrett has been suspended without pay indefinitely - at a minimum for the remainder of the regular season and postseason. He must also meet with the NFL Commissioner's office prior to a decision on his reinstatement. He was also fined an additional amount.
In a statement announcing the suspensions, the NFL said Garrett violated unnecessary roughness and unsportsmanlike conduct rules, as well as fighting, removing the helmet of an opponent and using the helmet as a weapon.
Pouncey has been suspended without pay for three games and fined an additional amount for fighting, including punching and kicking an opponent.
Ogunjobi has been suspended without pay for one game and fined an additional amount for unnecessary roughness, specifically for shoving an opposing player to the ground during an altercation.