Fans of L’Aquila and Sambenedettese clashed on the pitch after their Serie D match on Sunday.
Around 15 minutes after the final whistle of the match, which Sambenedettese won 3-0, fans from both sides invaded the pitch and started fighting.
The rival fans threw punches and hit each other with belts and sticks, while a handful of stewards unsuccessfully attempted to stop the violence.
No injuries were reported and no arrests have been made.