Russia has been accused of bombing an art school providing shelter to hundreds of civilians in the besieged city of Mariupol and of deporting thousands of residents to an unknown fate inside Russian territory as Ukrainian president Volodymyr Zelensky warns of a third world war if talks with Vladimir Putin fail.
The southeastern port city has suffered the most brutal siege of Russia’s invasion, and many of its 400,000 residents have been trapped for more than two weeks with scant food, water and power as Mr Putin seeks to establish a land corridor to the Crimea peninsula it annexed from Ukraine in 2014.
