Bolton Wanderers fans clashed with cops at the DW Stadium during Saturday afternoon’s Championship match against Wigan.
Chaotic scenes erupted when police tried to forcibly remove a Bolton fan from the away end.
In the first video below, two of the cops can be seen hitting the supporter several times.
The action prompted an angry reaction from some Bolton fans who started throwing punches at the cops in an attempt to help the man.
Four people were arrested at the match, with three people detained for public order offences and one for section 47 assault.