The July 17 Mykolaiv drone strike directly hit three civilian foreign-flagged vessels . Earlier, on July 14, a Russian missile struck a civilian cargo ship in Odesa Oblast for a second consecutive day, killing two people aboard . The strikes have driven shipowners to avoid calling at Ukrainian ports, and cargo insurance costs have surged sharply .
The cumulative effect of the campaign was severe at the peak of Ukraine's harvest season.
The combined effect of mutual Black Sea attacks and tight supply projections sent grain markets sharply higher.
Ukraine's deputy economy minister, Taras Vysotskiy, told Reuters on July 15 that Ukraine will do "everything possible" to protect its seaports and guarantee grain exports at no less than last season's level . "The state recognises the priority of maintaining agricultural exports," he said .
On the military side, Ukraine has also been striking Russian vessels in the Black Sea and Sea of Azov. Between July 6 and 17, Ukraine's Unmanned Systems Forces claimed to have struck 159 vessels from Russia's shadow fleet . Ukrainian attacks on Russian shipping in the Sea of Azov have prompted Moscow to prepare to reroute grain shipments from that route .