Russia and Ukraine have signed a landmark agreement while war rages on.
The warring nations have agreed to reopen Ukrainian Black Sea ports for grain exports, raising hopes that the world's crippling food crisis aggravated by the Russian invasion can be eased.
The agreement is the crown of two months of talks brokered by the United Nations and Turkey, with Turkey's President Tayyip Erdogan boldy declaring it a "turning point" in the war which aims to prevent billions from facing famine.
