A humanitarian mission entered the devastated city of Oleshky on Friday, officials said, as Russia and Ukraine observed the most significant truce of the 4½-year war that began with Moscow's full-scale invasion of its neighbor.

Recent efforts to throttle Ukraine's access to satellite systems have created a blame game of sorts among Trump administration officials and their allies, who have offered mixed messages about what led to the sudden restrictions on Kyiv's ability to intercept Russian strikes.

Russia unleashed another missile and drone blitz of civilian areas in Ukraine, killing at least nine people.