Four more freighters loaded with sunflower oil and maize have left Ukrainian ports. Bound for China, Turkey and Italy, the vessels will stop in Istanbul to be inspected, the Turkish Defence Ministry announced on Twitter on Sunday. In total, eight freighters have left Ukraine since an agreement to end a war-related port blockade was signed. Under the deal agreed in July, Ukraine pledged to guide the ships through waters that have been mined and Russia promised to not target the ships and certain port infrastructure. The deal’s brokers – the UN and Turkey – are helping safely coordinate the expo…