Meanwhile, US President Joe Biden has landed in Poland near the Ukraine border.
Earlier, Ukrainian authorities said that they feared there were around 300 dead in the bombing of a theatre in the port city of Mariupol.
With the Russian siege of Ukraine crossing the one-month mark, the G7 countries on Thursday backed the International Criminal Court’s (ICC's) investigation into possible war crimes in Ukraine.
The G7 said in a statement, "We remain appalled by and condemn the devastating attacks on the Ukrainian population and civilian infrastructure, including hospitals and schools."
Earlier, Joe Biden has said that Russia should be removed from the G20, an intergovernmental forum of 19 countries and the European Union that works on major global issues. However, Kremlin said that Russia's exclusion from G20 would not be 'fatal'.
UN General Assembly, on Thursday, approved the resolution blaming Russia for the humanitarian crisis in Ukraine and called for an immediate ceasefire
Zelenskyy says that there is a "real" threat that Moscow would use chemical weapons in Ukraine, and has asked NATO to provide Kyiv with unrestricted military support
United States would be taking in up to 1,00,000 Ukrainian war refugees, the White House said on Thursday
Almost 3.7 million people have fled Ukraine since the war began on 24 February, according to the UN's refugee agency
