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.

Russia and Ukraine held two rounds of direct talks on May 16 and June 2 in Istanbul. During the second round, they agreed on an "all-for-all" exchange of seriously ill and wounded prisoners, and soldiers under the age of 25, as well as the transfer of the bodies of fallen soldiers.