"Somewhere they (rioters) will have to understand that if they carry out such activity, the consequences will be dire," said BJP Leader Priyanka Maurya as demonstrators angered by the remarks against Prophet Muhammad threw stones at police personnel. UP Police has arrested over 300 people from various districts in the state in connection with Friday's protests and violence, with Chief Minister Yogi Adityanath warning of "strictest" action against those attempting to vitiate the atmosphere.