Residence of the Ambassador of Russia in Ukraine has demanded that the Ukrainian authorities to name the reason of detention of the correspondents of the Russian television channel " Star ". About it has told the press-Secretary of the diplomatic mission Oleg Grishin." We own the parties have submitted requests to the Ukrainian authorities with the request as soon as possible to release the Russian Citizens and to name the reasons of their detention ", ? he said." General Consulate of Russia in Kharkiv instructed to keep the issue under constant operational control ", ? said Grishin.