Dmitry Korchynsky, the leader of the radical Bratstvo (Brotherhood) party, has been declared internationally wanted.
"I am sure that this person's whereabouts will be established shortly and due measures will be taken," chief of the ministry's criminal search department Vasyl Paskal has said.
"We also have reports saying that individual members of Korchynsky's organization - 15 people - lived in his office. He used these individuals during most radical actions," the official said.
