West Midlands Police says it is liaising with the club and reviewing footage from the game.
A police investigation has begun after Ipswich player Jack Taylor was apparently struck by a Birmingham City supporter.
The alleged incident happened on Friday night, during the match that saw the teams draw 1-1 as they kicked off their Championship season at St Andrew's @ Knighthead Park.
After forward George Hirst scored a penalty in injury time, Ipswich's celebrations led to a melee involving several players from both sides, during which Taylor was allegedly assaulted.
In a statement, Blues bosses said they were aware of the incident and had a "zero-tolerance policy towards violent and anti-social behaviour inside or around our stadium".
On Sunday, West Midlands Police told the BBC they were liaising with the club and "reviewing CCTV footage to establish the full circumstances".
The club added they would support officers and take appropriate action once the investigation concluded.
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