Violence among football fans ahead of Nottingham Forest's fourth-round FA Cup tie with rivals Leicester City is being investigated by police.
Officers were called to disturbances in Nottingham city centre before kick off on Sunday.
The game at the City Ground finished 4-1 and saw Premier League side Leicester kicked out of the competition.
A man was arrested after running on to the pitch as Forest players celebrated the third goal.
The violence in the city centre saw large groups - thought to be Leicester supporters - throwing bottles and tables and chairs outside various venues.