Russia launched its largest drone attack of the war on Ukraine overnight into Wednesday, according to Ukrainian President Volodymyr Zelenskyy, with 741 aerial attack vehicles used in the bombardment.

The attack, which follows a series of escalating air assaults on Ukraine in recent weeks, showed the need for "biting" sanctions on the sources of income Russia uses to finance the war, including on those who buy Russian oil, Ukrainian President Volodymyr Zelenskiy said on Telegram.

Ukraine's President Volodymyr Zelenskiy said on Wednesday that Russia's largest drone attack overnight on Ukraine showed the need for 'biting' sanctions on Russia and secondary punitive measures against Russian oil.