A Turkish military delegation will travel to Russia this week to discuss details of a possible maritime corridor in the Black Sea for Ukrainian grain exports, Turkish broadcasters said Tuesday, citing sources in the Turkish presidential administration.

Radio Haberturk reported that a quadrilateral meeting between Turkey, Ukraine, Russia and the United Nations will be held in Istanbul within 10 days, and President Tayyip Erdogan and U.N. Secretary-General Antonio Guterres may join the meeting.

Sources cited by Haberturk said the plan would establish three corridors at four separate ports in the Black Sea city of Odessa in Ukraine, and that both Ukrainian and Russian food products would be shipped from there. According to them, 30-35 million tons of grain is expected to be shipped from there within 6-8 months.