Ukraine has proposed, through a third party, a mutual halt to attacks on civilian targets in the Black Sea as escalating strikes threaten grain exports and global food supplies, though Russia says it has received no formal proposal.

Ukraine hit three grain terminals and the naval base at Russia's Novorossiysk port, suspending operations at key export facilities and raising

Kyiv wants the help of EU countries as Black Sea missile strikes choke its grain exports, but capitals fear the ire of their own farmers.