
Russia and Ukraine discussed further prisoner swaps on Wednesday at a brief session of peace talks in Istanbul, but the sides remained far apart on ceasefire terms and a possible meeting of their leaders.
"We have progress on the humanitarian track, with no progress on a cessation of hostilities," Ukraine's chief delegate Rustem Umerov said after talks that lasted just 40 minutes.
He said Ukraine had proposed a meeting before the end of August between Ukraine's President Volodymyr Zelenskiy and Russian President Vladimir Putin. He added: "By agreeing to this proposal, Russia can clearly demonstrate its constructive approach."
Russia's chief delegate Vladimir Medinsky said the point of a leaders' meeting should be to sign an agreement, not to "discuss everything from scratch".
He renewed Moscow's call for a series of short ceasefires of 24-48 hours to enable the retrieval of bodies. Ukraine says it wants an immediate and much longer ceasefire.
The talks took place just over a week after U.S. President Donald Trump threatened heavy new sanctions on Russia and countries that buy its exports unless a peace deal was reached within 50 days.
There was no sign of any progress towards that goal, although both sides said there was discussion of further humanitarian exchanges following a series of prisoner swaps, the latest of which took place on Wednesday.
Medinsky said the negotiators agreed to exchange at least 1,200 more prisoners of war from each side, and Russia had offered to hand over another 3,000 Ukrainian bodies.
He said Moscow was working through a list of 339 names of Ukrainian children that Kyiv accuses it of abducting. Russia denies that charge and says it has offered protection to children separated from their parents during the war.
"Some of the children have already been returned back to Ukraine. Work is under way on the rest. If their legal parents, close relatives, representatives are found, these children will immediately return home," Medinsky said.
Umerov said Kyiv was expecting "further progress" on POWs, adding: "We continue to insist on the release of civilians, including children." Ukrainian authorities say at least 19,000 children have been forcibly deported.