The Principal of Dingle Secondary School has issued an appeal to those responsible for a fire at the school at the weekend to come forward. The incident occurred on Friday night just after 11 o clock at a prefab which was being used by the Principal. It`s the second fire at the school since Christmas when 250,000 euro worth of damage was done.Meanwhile on Saturday night another prefab was broken into and significant criminal damage was caused. Gardai say an arrest is imminent. Principal of the CBS Padraig Ferteir has given his reaction to the fire.