meatinfo.co.uk, KFC fights back in growing halal chicken row, 21 Apr 2010, "The fast-food restaurant had come under criticism from some sections of the Muslim community, who contest whether the chicken served in its stores is properly halal. KFC has stated that its chicken has been approved by two major halal bodies."
I must admit that meatinfo.co.uk is not a regular read of mine, but this is a significant issue.