The United Nations and Turkey brokered the Black Sea Grain Initiative between Moscow and Kyiv last July to help tackle a global food crisis aggravated by Russia's invasion of Ukraine, a leading global grain exporter.
Russia agreed in May to a two-month extension of the deal but has said the initiative will cease unless an agreement aimed at overcoming obstacles to Russian grain and fertiliser exports is fulfilled.
"The Joint Coordination Centre in Istanbul (which oversees the initiative) has announced that it is impossible to draw up an inspection plan for June 1 due to another unjustified refusal of the Russian delegation to register the incoming fleet for participation in the Initiative," the Ukrainian ministry said on Facebook.
It said Russia had registered only one incoming ship for inspection in the last two days of May and had given no explanation for the move, which the ministry said was a "gross violation" of the initiative.
