Clashes near the Olympic stadium between a group of around 200 Lazio fans and around a hundred Giallorossi supporters. Police intervened to separate the two groups, even using tear gas.
Forensic images are already being examined to identify who took part in the riots. The derby is scheduled for 6pm, with Lazio winning 2-1. A Roma fan has been arrested, and police have seized helmets, sledgehammers and screwdrivers during the operation. The police, who were subjected to paper bombs, used tear gas to disperse them.