Ukraine's President Volodymyr Zelenskyy has called for more pressure on Russia as the war appears to be entering a period of stalemate.
In his latest video address, Zelenskyy said that about 100,000 people are still stuck in the port city of Mariupol under a "complete blockade" and suffering under "inhumane conditions."
Russian air strikes have turned the besieged port city into the "ashes of a dead land," the city council said , as the U.S. and Europe prepared to slap more sanctions on Moscow.
U.S. President Joe Biden said Russian leader Vladimir Putin's "back is against the wall" and he could resort to using more severe tactics in Ukraine.
Amid few wins for Russia's forces, and a continuing staunch resistance from Ukraine, Kyiv claimed on Tuesday that around 15,000 Russian soldiers have been killed so far in the fighting.