One person has died after Russia launched its largest drone attack, firing more than 270 drones at Ukraine. The strikes are the largest Russian-launched drone attack on Ukraine since the beginning of the war.

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.

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.