Police are encouraging supporters of both clubs ahead of Wednesday's Carling Cup derby between Birmingham City and Aston Villa to enjoy the fixture.

Superintendent Steve Graham, match day commander, said: "We have worked with Birmingham City and Aston Villa to ensure that this event takes place in a trouble-free and safe environment.

"Thousands of avid supporters will attend the match to enjoy the spectacle and atmosphere of a local derby, however we acknowledge that there may be a minority who will seek to use the occasion as an excuse to cause trouble.

"My message to this minority is that there will be a high-visibility operation on the day and we will take a robust stance against anyone whose behaviour falls foul of the law.

"Local derbies always are policed accordingly and this match will be no different.

"Anyone arrested for football related matters will also be subject of applications of football banning orders which will prevent them from attending future fixtures."

Anyone with information on those involved in match day disorder is asked speak to officers at the force's Football Unit on 0345 113 5000. Alternatively, people who do not wish to speak to police officers directly can call the independent charity Crimestoppers anonymously on 0800 555 111.