Italian authorities have launched a manslaughter inquiry following the fatal shooting of a Lazio fan by a policeman.
28-year-old Gabriele Sandri was in a car at a motorway service station when he was killed in what police describe as a “tragic error.”
The unnamed officer has told the Italian newspaper Corriere della Sera that he had not aimed at anyone.
He claims to have fired into the air while running to stop fighting between rival supporters from Lazio and Juventus.
In the wake of subsequent rioting across the country, Italian soccer chiefs have been meeting to discuss what new measures to take.
Sports Minister Giovanna Melandri has called for tough action such as league games to be suspended for a several weeks.
But some football bosses say the response should be measured because they can do little about trouble away from stadiums.
Italy has a well-known hooligan problem and authorities are desperate to avoid a repeat of Sunday’s violence, which mirrored riots outside a Catania match in Sicily in February, where a policeman was killed.
That incident led to strict new security measures at fooball grounds, but authorities may have to revise the rules amid calls to ban away fans from all grounds in future.