The probability of Russia's withdrawal from the Black Sea grain deal in July remains high, although talks continue, Russia's RIA news agency cited an anonymous source as saying on Wednesday.
Moscow has repeatedly complained that it was not getting what it wanted from the deal which has allowed grain to be shipped out of Ukrainian ports and expires on July 18.
The Ukrainian Sea Ports Authority said on Tuesday that Ukraine must be ready to export grain almost exclusively via its Danube River ports because Russia is effectively blocking Black Sea shipments.
The United Nations and Türkiye brokered a deal between Moscow and Kyiv last July on the safe passage of Black Sea grain to help tackle a global food crisis worsened by Russia's invasion of its neighbor and a blockade of Ukrainian Black Sea ports.
Moscow has threatened not to extend the deal beyond July 18 unless a series of demands are met, including the removal of obstacles to Russian grain and fertilizer exports. It says that promises of help with those exports have not materialized.