Photojournalist Mstyslav Chernov shares the siege of Mariupol with the world
The crisis comes just as uncertainty was rising owing to surging prices caused by a spike in demand for oil, tight supplies and pandemic-induced supply chain snarls, among other things.
As Russian troops entered Kiev, the president said if ever there were a time for the security council to intervene it was now, adding that he planned to speak to both Moscow and Washington