Rampaging gangs of "frightening" youths have been clashing on buses in chaotic scenes. There has been outbreaks of trouble and "anti-social behaviour in the Caernarfon area in recent days. One passenger said a group of 20 youths from Bangor caused "conflict".
And in another incident one boy was allegedly dragged off a bus by a yob, NorthWalesLive reports.
North Wales Police says it is increasing patrols to tackle anti-social behaviour in the area generally and Gwynedd Council criticised the culprits.
