More than 170 people were injured, the vast majority of them police, following fighting at the Olimpico football stadium in Rome on Sunday night 21 March, when the game between Rome's two teams Rome and Lazio was called off halfway through the match.
There had been outbreaks of violence between opposing fans before the game, and it was finally halted when false rumours began to circulate that a child had been killed outside the stadium in an incident involving the police.
Rioting by supporters of both teams continued late into the night, with cars and ticket offices at the stadium being set alight. 15 people were arrested and damage is estimated at more than 200,000 euros.
It is uncertain whether the match between Roma and Villareal scheduled at Rome's Olimpico on Thursday 25 March will take place.