The bombardment, which Ukrainian officials said mostly targeted Kyiv, came just a day before President Trump was expected to talk with President Vladimir V. Putin of Russia.

Russia has battered Ukraine overnight with its largest drone attack since the war began, Ukraine’s military said Sunday, as Moscow intensified its military assault despite holding direct peace talks with Kyiv Friday.

Russia launched on Sunday its largest drone attack on Ukraine since the start of the war, destroying homes and killing at least one woman a day before U.S. President Donald Trump is due to discuss a proposed ceasefire with Russia's Vladimir Putin.