About a dozen activists are trying to break through police cordons into the Kharkiv City Council session.
Up to a hundred supporters are cheering from the street. They are chanting, "Put Hepa in Prison" and "Shame," an Interfax-Ukraine correspondent has reported from the site.
The attempt to break through police cordons has been unsuccessful for now.
Several rows of police officers are protecting the main entrance to the City Council building. The police are protecting the other entrances too.
The motorcade of Kharkiv Mayor Hennadiy Kernes widely known as "Hepa" and his bodyguards arrived in the City Hall at about 09.30.
Source: Interfax-Ukraine