Ukraine is ready to resume direct peace talks with Russia in Istanbul on Monday, a top adviser to President Volodymyr Zelenskyy said, following days of uncertainty over whether Kyiv would attend a meeting proposed by Moscow, reported news agency AP.

However, Ukrainian officials have insisted that the Kremlin provide a promised memorandum outlining its position on ending the more than three-year war before the two delegations sit down to negotiate.

“Ukraine is ready to attend the next meeting, but we want to engage in a constructive discussion,” Andrii Yermak said in a statement on the website of Ukraine's Presidential Office late Thursday.