Japan has banned the export of chemical weapons-related goods to the Russian Federation as part of additional sanctions against Moscow over its full-scale invasion of Ukraine. Japan's Chief Cabinet Secretary Hirokazu Matsuno said Tokyo is "deeply concerned" about the possible use of nuclear weapons, Reuters reports.

 In addition, Japan extended sanctions to 21 Russian organizations, including scientific laboratories.

 "Japan is deeply concerned about the possibility of using nuclear weapons during Russia's invasion of Ukraine," Matsuno said during a media briefing, adding that Japan would continue to work with the international community to support Ukraine and sanctions against Russia.

 What happened before:

 After failing on the battlefield, Putin mobilizes 300,000 troops while threatening to use all available means to defend Russia.

 "This is not a bluff," the dictator said in a speech regarded by the world community as a threat of the possible use of nuclear weapons.

 In response, US President Joe Biden, during a speech at the UN General Assembly in New York on Wednesday, accused Putin of "open nuclear threats to Europe" and reckless disregard for nuclear non-proliferation commitments.

 According to the media, the West is thinking about response plans in case the dictator starts to implement his nuclear threats against Ukraine and privately sends warnings to the Kremlin about the possible consequences.