What occurred in "Fizgorodke" and why?

Today there was a collision between "Fizgorodk's" inhabitants and police, the part of inhabitants was delivered ​​ in police. The last, according to inhabitants, behaved very roughly — dragged, pulled, pushed people, among them the full age boy. The same situation was yesterday — a crush, a crowd, turmoil, the drive in t police. e … In what the reason of all this as why occurred...