Ukrainian President Volodymyr Zelenskyy spoke to the American officials as he accused Moscow of breaking US President Donald Trump's "energy ceasefire" 76 times.
The US President is stepping up attacks against his Ukrainian counterpart, accusing him of not wanting to end the war and of continuing to target energy infrastructure. Despite this, the dialogue between Ukraine and US emissaries continues.
Ukrainian President Volodymyr Zelensky spoke with senior US envoys on Sunday in a bid to ease tensions, while Donald Trump accused his counterpart of being unwilling to end the war with Russia.