The first grain exports from Ukraine’s blockaded ports could still leave on Friday despite Russian missile attacks on Odesa earlier this week, according to the United Nations’ aid chief.

Martin Griffiths said ships loaded with grain were ready to move as officials from the UN, Turkey, Russia and Ukraine thrashed out final details to ensure their safe passage.

The first ships are due to leave Chernomorsk followed by further shipments from the ports of Odesa and Yuzhne to counter rising food prices and shortages.