Ukrainian drones struck an oil refinery and a port in Russia’s southern Krasnodar region overnight on March 14, causing injuries and significant damage, local authorities reported.

Port infrastructure in Temryuk, a Russian town on the Azov Sea, was damaged in a Ukrainian drone attack overnight, the local emergencies center said on Friday.

A cargo ship, the Pavel Grabovsky, began sinking in the Sea of Azov while en route from Russia’s Rostov to the Turkish city of Samsun.