From a story on politico.eu by Stuart Lau headlined “China’s Xi warns Putin not to use nuclear arms in Ukraine”:

TAIPEI — Chinese leader Xi Jinping made his most direct criticism yet of Vladimir Putin’s war on Ukraine on Friday, warning the Russian president not to resort to nuclear weapons and calling on visiting German Chancellor Olaf Scholz to push for peace talks.

Xi’s warning comes just over a month after Putin threatened Ukraine with a nuclear attack, a sign of how far Ukrainian forces had rocked the Kremlin with their advances against invaders in the East.