Russia and Ukraine signed a deal on Friday to reopen grains exports from Ukrainian Black Sea ports in an agreement that U.N. Secretary-General  Antonio Guterres and Turkey’s President Tayyip Erdogan said would help ease a global food crisis.

Government ministers from Russia and Ukraine signed the deal separately, avoiding sitting at the same table and avoiding shaking hands at the event in Istanbul.“Today, there is a beacon on the Black Sea. A beacon of hope (and) possibility... and relief in a world that needs it more than ever,” Guterres said, calling on Russia and Ukraine to fully implement the accord.