Several right-wing extremists attacked Moroccan football fans in Verona as they took to the streets to celebrate the World Cup round of 16 victory over Spain.
Special police forces arrested 13 young people on Tuesday evening.
According to information from the authorities on Wednesday, they can be assigned to the right-wing extremist groups in the northern Italian city.
An amateur video shows hooded rioters approaching and beating supporters in the northern Italian city with chains and batons on Tuesday evening.
Four cars were damaged.
According to media reports, a woman was slightly injured when a car window broke.
The police also reported that they were able to intervene quickly after the incident and stop the alleged perpetrators.
Their personal details were recorded.
Videos would now be viewed and further investigations initiated.
Morocco's national team surprisingly beat the favored Spaniards 3-0 on penalties in the round of 16.
As a result, fans of the North Africans spontaneously celebrated the victory in many cities around the world.