At the United Nations, Russia’s top diplomat warned against “trying to fight to victory with a nuclear power.”

By Simon Lewis and Michelle Nichols UNITED NATIONS (Reuters) -Russian Foreign Minister Sergei Lavrov on Saturday told the United Nations that it was senseless to ignore alternatives to Ukraine's peace proposals,

The Russian president said an attack on Russia using conventional weapons supported by a nuclear state may trigger a nuclear response.

The Kremlin said on Thursday that changes to Russia's nuclear weapons doctrine outlined by President Vladimir Putin should be considered a signal to Western countries that there will be consequences if they participate in attacks on Russia.

The Kremlin on Sept. 26 emphasized that President Vladimir Putin’s revisions to Russia’s nuclear weapons doctrine should serve as a warning to Western nations, making clear that involvement in attacks on Russia would carry serious repercussions.

Top diplomat Sergey Lavrov’s fiery UN speech comes just days after Putin aired a shift in the country’s nuclear doctrine.

The Russian authorities are making significant efforts to prevent the West from allowing Ukraine to use the long-range weapons provided to strike Russia. This indicates deep concern on the part of Russia,