The diplomat's letter was published by Russia's Deputy Permanent Representative to the UN Dmitry Polyansky on Twitter.

"The following systematic problems must be solved: connection to the SWIFT system of the Russian Agricultural Bank, the resumption of supplies to Russia of agricultural machinery, the lifting of restrictions on insurance and access to ports for Russian cargo ships," the statement said.

In addition, Russia advocates the resumption of the operation of the Ammonia pipeline Togliatti - Odessa, as well as the unblocking of accounts and financial activities of Russian companies for the production of fertilizers.

Nebenzia stressed that Russia will consider the possibility of extending the food deal in 60 days only with tangible progress in fulfilling Moscow's requirements.

Earlier, the representative of the UN Secretary General Stephane Dujarric confirmed the extension of the grain deal and called for increased efforts to implement it.

Russian Foreign Ministry spokeswoman Maria Zakharova said Russia had agreed to extend the grain deal for only 60 days.