The president said he's optimistic about Thursday's expected talks between Vladimir Putin and Volodymyr Zelensky in Istanbul.

Russia launched a barrage of 108 drones at Ukraine overnight, Kyiv said, in defiance of a proposed 30-day ceasefire starting today. Up to 55 of the drones were shot down, the air force said, adding that a civilian freight train had been hit, injuring its driver.

Ukrainian President Volodymyr Zelensky said Sunday he will travel to Turkey later this week to meet Russian President Vladimir Putin to discuss a "necessary basis for diplomacy" to end the war. Why it matters: If the meeting takes place,