Zelensky has also confirmed that he will meet with Trump in Washington on Monday.
Posting on Telegram, Zelensky said he had spoken with Trump for about an hour one-on-one, before European leaders joined for another half hour.
Writing on Telegram, he said, "We support President Trump's proposal for a trilateral meeting between Ukraine, America and Russia. Ukraine emphasizes that key issues can be discussed at the level of leaders, and the trilateral format is suitable for this.