Hull City have announced that arrests were made following discriminatory chanting by supporters during their 4-0 FA Cup fourth round defeat against Chelsea.
After offensive chanting was heard in sections of the home crowd in the first half, a warning was made over the PA system urging supporters to stop and reminding them that CCTV was in operation.
Another announcement followed in the second half which included confirmation that arrests had been made.
The FA will review the referee's match report before deciding whether to take any further action.
Hull had warned their fans ahead of the match that "any chanting of a homophobic, racist or discriminatory nature is entirely unacceptable and will not be tolerated inside the MKM Stadium.
"Any supporter found engaging in such behaviour will face serious consequences including immediate ejection from the stadium, the possibility of a banning order and potential criminal prosecution."
Your Site News has contacted Humberside Police for comment.
In his post-match press conference, Hull City head coach Sergej Jakirovic said: "I didn't hear that [the chanting] and this is not the place for this for sure, in the stadium and also in public as well. This is not good, for sure.
"The stadium is not the place for that and this is the reason why they are arrested."
Chelsea head coach Liam Rosenior added: "Without knowing what has happened, and I don't know, any discriminatory language in any form about anything is unacceptable.
"I hope it gets dealt with. The fourth official mentioned something to me but I was so focused on the game. I honestly don't know what's happened there."
