Three Russian Black Sea terminals restrict grain intake by truck amid shipping risks, sources say

July 28 (Reuters) - Three major Russian Black Sea grain export terminals have restricted grain deliveries by truck amid rising shipping risks in the Black Sea and increased flows following restrictions in the Sea of Azov, five industry sources told Reuters. Russia, the world's largest wheat exporter, restricted shipping through the Sea of Azov this month after Ukrainian drones attacked several Russian grain vessels on the route, which handles about a quarter of the country's grain exports.