Investigations are continuing today to identify those involved in disorder following the Hull KR V Salford match on Saturday.
Match commander Superintendent Tracey Bradley said: “We have already made arrests, but our work will not stop there.
“An investigation has been launched to identify more of those who became involved in the incident.
“Rugby matches should be friendly sporting events that families can attend and enjoy. We will not allow the minority of people to spoil such occasions and are working closely with both clubs, as well as our colleagues with Greater Manchester Police, to deal with those who do seek to become involved in violence and disorder.”
A 27-year-old Salford man and 16-year-old Hull boy were arrested on suspicion of affray following the pitch invasion.
A 36-year-old Beverley man was arrested on suspicion of assault ABH in connection with a further incident in Londesborough Street.
All three have been bailed to a date later this month.
Supt Bradley added: “It is worth noting that the vast majority of the fans in attendance at the match took no part in the disorder and have joined the force and both clubs in condemning the behaviour of those who were involved.
“I would appeal for anyone with information about the identities of those who were involved to contact us, so appropriate action can be taken.”
Anyone with information is asked to call 101, quoting log number 208 of October 1