KYIV, Ukraine—Fighting between Russian and Ukrainian forces has reached the streets of the port city of Mariupol, officials said Saturday, a strategic objective for Moscow as it attempts to open an overland corridor to the annexed region of Crimea and shift the momentum in its three-week-old invasion.
During weekslong bombardment and attack, Ukrainians said they had kept Russian forces at bay on Mariupol’s outskirts, but that has changed. “The fighting is already in the city itself,” an official from the mayor’s office said via text message. “But Mariupol remains a Ukrainian city.”