Some 200 Torino fans have staged a violent demonstration outside the Turin city hall, injuring 13 policemen in the process, La Gazzetta dello Sport reported on Friday. The newspaper was quoted by dpa as saying that the fans, who were demonstrating against the clubs forced demotion to Serie C due to huge debts, threw stones and bottles at the police late Thursday. The Italian football federation (FIGC) had earlier refused the club a license for the new season and said the team could campaign in Serie C under a new management and with a new owner. Several interested parties have already spoken to the club to take it over, but discussion had not been finalised. --SP 1452 Local Time 1152 GMT