Russia launched its largest drone attack on Ukraine since the beginning of its invasion, Ukrainian officials said Wednesday, just hours after US President Donald Trump pledged more military support for Kyiv and accused his Russian counterpart Vladimir Putin of throwing “bullsh*t” over peace talks.

Trump is openly voicing his frustration with Putin as Russia intensifies attacks while the U.S. tries to broker peace.

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.