Russian and Ukrainian officials agreed to a temporary cease-fire in the besieged southern port city of Mariupol, with evacuations planned for Friday, even as the Pentagon reported devastating airstrikes there and in Kyiv, the capital, over the previous 24 hours.
Dozens of buses began arriving in Mariupol on Thursday to deliver humanitarian aid and transport civilians, an effort that a spokesman for the International Committee of the Red Cross called "desperately important" for a city that has borne the worst of Russia's invasion and where 100,000 residents may still be trapped.