Ukraine will send a delegation to Istanbul for a new round of direct peace talks with Russia on Monday, President Volodymyr Zelensky announced Sunday, as the conflict rages on with deadly missile strikes and the largest drone assault of the three-year war.

Russia has intensified strikes on Ukraine overnight, with widespread attacks across the country affecting most regions.

Ukraine's large-scale drone strikes on two Russian airbases reportedly destroyed over 40 military aircraft, marking a major escalation in the conflict.