By Harriet Heywood
BBC News, Norfolk
Police have arrested 11 people before, during, and after the East Anglian derby match between Norwich City and Ipswich Town.
More than 27,000 fans saw Norwich win 1-0 at Carrow Road.
Despite making arrests for offences including criminal damage, anti-social behaviour and letting off a smoke device, police praised both sets of fans.
They said supporters showed "good spirit and humour".
Norfolk Police said all those arrested remained in police custody.
The policing operation had been months in the planning, the force said, with officers from Suffolk, Cambridgeshire and British Transport Police also in attendance.