A spokesperson criticised the behaviour of a "small number" of fans at the game between Birmingham City and the Wolverhampton Wanderers.
The Football League is investigating whether Carson Yeung is still wielding significant influence at Birmingham from his prison cell.
Birmingham have parted company with manager Lee Clark with immediate effect, the Championship club has confirmed
The owner of Birmingham City Football Club has been found guilty of five counts of money laundering by a Hong Kong court.
Carson Yeung previously denied laundering a total of US$93 million (£55.5 million) between January 2001 and December 2007.
Yeung is due for sentencing on Friday.