A fifth suspected attacker of journalist Tetiana Chornovol has been detained, chief of the Ukrainian Interior Ministry's main investigative department Mykola Chynchyn reported on Thursday.

"The main task set to police is to find out who ordered this crime," he said in the video statement posted on the ministry's Web site on Friday.

Chynchyn said that the police are using reports in the mass media as part of the inquiry into this case.

"The investigators analyzed a statement by the ex-owner of the TVi channel, Kostiantyn Kahalovsky, that a suspect in attack on Tetiana Chornovol, Serhiy Kotenko, was involved in the raider takeover of this TV channel. Kahalovsky also said that MPs Mykola Kniazhytsky and Davyd Zhvania are connected to the activities of the suspect," he added.

The investigation officer said that the investigation had revealed that Kotenko was a founder and director of the enterprise that took over the TVi channel.

"The inquiry also determined that the detained people had close relations with members of the UDAR Party Yevheniy Oharkov, Dmytro Kreynin and Ihor Opadchy - the latter two are deputies of Kyiv regional council from the UDAR Party. Besides, the suspect is connected to MP from Batkivschyna faction Volodymyr Polochaninov," the chief of the main investigation department reported.

According to him, one of the suspects, Oleksandr Kotenko, is a member of a gang that is part of the criminal community, whose leader had close relations with the Klitschko brothers.

He added that investigators were now checking the alibis of some of those detained, information about which has appeared in mass media.

"However, their absence from the place of crime during the committing of the crime doesn't exclude involvement in the attack on Tetiana Chornovol as accomplices or organizers. That's why all people have been detained with good reason and the police are checking on how they might have been involved in the crime," Chynchyn said.