Peace talks between the Kiev and Moscow governments over the Ukraine conflict were expected to begin on Monday morning, according to reports by Ukrayinska Pravda and Russian news agency TASS.
They had originally been due to start on Sunday. TASS cited an anonymous source saying logistical issues for the Ukrainian delegation was the reason for the delay.
The Russian delegation had already left the Belarusian capital Minsk and travelled to the the Ukrainian-Belarusian border, near the Pripyat River, where the meeting was set to take place, according to the reports.
Ukraine agreed to launch peace talks with Russia on Sunday, even as battles raged in key cities and Russian President Vladimir Putin raised the prospect of a nuclear escalation with the West.
"I don't believe in a result of this meeting, but let's try," Ukrainian President Volodymyr Zelensky said.