- Summary- Companies- IAEA chief visits Kyiv, will go to Moscow- He wants nuclear safety zone around Zaporizhzhia plant- Ukraine's Zelenskiy accuses Russia of "nuclear blackmail"KYIV, Oct 6 (Reuters) - The head of the U.N. nuclear watchdog described the Zaporizhzhia nuclear power station as Ukrainian on Thursday, challenging President Vladimir Putin's assertion that the plant is now part of Russia.Putin ordered his government on Wednesday to take control of the plant, which was seized by Russian forces in March, but the head of Ukraine's state nuclear energy company said the same day that he was taking charge of it.Russia has occupied the Zaporizhzhia nuclear power plant (ZNPP), Europe's largest, since shortly after its invasion of Ukraine, but Ukrainian staff have continued to operate it.The ZNPP is located in a part of southern Ukraine that Putin has formally incorporated into Russia after holding what Moscow called referendums, in a move condemned by Kyiv and its Western partners as an illegal land grab.The situation at the plant is a source of international concern because of fears that repeated shelling of the plant's territory - for which Kyiv and Moscow blame each other - could lead to a nuclear accident."