During the talks, Ukraine proposed holding a summit between President Volodymyr Zelensky and Russian President Vladimir Putin before the end of August, according to National Security and Defense Council Secretary Rustem Umerov,

The warring sides remain far apart after the third round of U.S.-brokered peace negotiations on Wednesday. But there was progress on humanitarian issues.

Negotiators for the warring sides in Istanbul appeared to make little progress on ceasefire terms or a possible summit between their presidents – with their meeting ending after less than an hour.