Concerns mount over global food security and higher food prices after Russian air strikes this week destroyed key Ukrainian grain warehouses and a wheat exports port on the Danube River. With the Black Sea grain export corridor closed since July 17, market suppliers had prepared to ship from Izmail and Reni ports on the Danube, but the attack brought plans to a standstill. The consequences of this attack could be severe, potentially crippling sea-based exports from Ukraine.