The United Nations chief sent Russia a new proposal aimed at getting its grain and fertilizer to global markets in hopes of reviving the deal that allowed Ukraine to ship almost 33,000 tons of grain at a time of growing global hunger, writes AP NEWS.

But Moscow wasn’t satisfied with the letter that U.N. Secretary-General Antonio Guterres sent Russian Foreign Minister Sergey Lavrov earlier this week.

Speaking at a press conference Thursday after meeting with Turkish Foreign Minister Hakan Fidan, Lavrov said he had given Ankara a list of actions that the West would have to take in order to resume Ukrainian shipments.

The United Nations and Turkey brokered the deal in July 2022 that allowed Ukraine to ship grain and other foodstuffs from three Black Sea ports. A separate memorandum between the U.N. and Russia pledged to overcome obstacles to Moscow’s shipment of food and fertilizer to world markets.

The deal followed Russia’s Feb. 24, 2022, invasion of Ukraine which sent global food prices skyrocketing because the two countries are major “breadbaskets” for the world.

Guterres told U.N. reporters on Thursday that he had written a letter to Lavrov with “a set of concrete proposals, allowing to create the conditions for the renewal of the Black Sea initiative.” He did not give any details other than to say, “we have some concrete solutions for the concerns allowing for an effective, or more effective access of Russian food and fertilizers to global markets at adequate prices”.