Lifting sanctions imposed on Russia is part of peace negotiations between Moscow and Ukraine, which are "difficult" but continue daily, Russian Foreign Minister Sergei Lavrov said in remarks published early on Saturday.
Kyiv warned on Friday that talks on ending Russia's invasion, now in its third month, were in danger of collapse.
"At present, the Russian and Ukrainian delegations are actually discussing on a daily basis via video-conferencing a draft of a possible treaty," Lavrov said in comments to China's official Xinhua news agency published on the Russian foreign ministry's website.
Ukraine's President Volodymyr Zelensky has insisted since the invasion began on Feb. 24 that Western sanctions on Russia needed to be strengthened and could not be part of negotiations.
Ukraine and Russia have not held face-to-face peace talks since March 29, and the atmosphere has soured over Ukrainian allegations that Russian troops carried out atrocities as they withdrew from areas near Kyiv. Moscow has denied the claims.