KYIV, Ukraine — Residents of the besieged Ukrainian city of Sumy began evacuating through a designated safe corridor Tuesday despite unease over whether Russian bombing could resume without warning.
But another supposedly safe route, from the southern port of Mariupol, came under further shelling that prevented people from finding a way out of the embattled city, Ukrainian authorities said.
The civilians trying to leave their homes in Sumy and Mariupol are part of a startling exodus from Ukraine that has now surpassed 2 million people in less than two weeks, the United Nations said. Relentless Russian assaults have led to snowballing humanitarian crises and a rush to flee Europe’s biggest land war in 75 years.