Ukraine urges UN to counter Russia's nuclear threats.

Ukraine has called for an emergency meeting of the United Nations Security Council to counter Russia's "nuclear blackmail" after Russian President Vladimir Putin said his country would station tactical nuclear weapons in Belarus. The move has raised concerns in the West about an intensified assault on Ukraine. However, the US National Security Council has said there is "no indication" that Putin has made good on the pledge to move nuclear weapons to Belarus or that he plans to use them in the war in Ukraine.