A club statement from www.cardiffcityfc.co.uk reads
The club are examining very seriously the behaviour of a group of our "supporters" on the Grange End terrace at yesterday's FA Cup game with Tottenham Hotspur.
A small section of our "supporters" seemed intent on causing trouble culminating in a flare being lit on the terrace. As a club we will not tolerate this behaviour and will punish all guilty parties with an immediate life ban from Ninian Park.
We are currently, in conjunction with the police, examining all photographic and video evidence to identify the culprits and are also reviewing our Concessions Policy in this section of the stadium.
Anyone with information please contact the club firstname.lastname@example.org
"It was a distress flare which is extremely dangerous as well all remember the sad incident at the National Stadium where a man was killed. It is against regulations to bring them into the ground and we want this person identified so we can issue a club ban."
In total 6 people were arrested for public order offences and now the police and the club have set up a post match enquiry to identify the troublemakers in the Grange End.
Police Superintendent Bob Tooby said "I must stress that the people who caused the trouble are not part of the normal fan base at Cardiff City and relationship between the police, the fans and the club remians first class. But those who misbehaved can expect a knock on the door".