The Turkish Foreign Ministry has summoned Ukraine’s ambassador after two Turkish-operated vessels were attacked in the Black Sea, raising concerns over the safety of civilian shipping in the waterway.

The incidents occurred earlier this week off the Russian port of Tuapse. On Wednesday, the cargo ship Lider Bordo Mavi was hit by at least three Ukrainian drones, leaving five crew members injured and setting the vessel ablaze.

The following day, another vessel, the Lider Kocatepe, was dispatched to assist the damaged ship. It came under drone attack en route, sustaining damage and forcing it to return to the Turkish port of Samsun.

Kiev’s envoy to Ankara, Naryman Dzhelialov, was summoned on Saturday. During the meeting, Turkish diplomats conveyed their concerns over the incidents and the safety of navigation in the Black Sea.

“During the meeting, Türkiye warned about the absolute need to ensure the safety of people, of assets, of navigation, and of the environment in the Black Sea,” the ministry said in a statement.

In recent weeks, Kiev has stepped up attacks on civilian shipping, attacking vessels heading to and from Russian ports and repeatedly striking Turkish-linked ships. Moscow has mounted a retaliatory campaign against Ukrainian military-linked shipping, heavily disrupting the country’s Black Sea ports and effectively bringing all marine traffic to a halt. The retaliatory strikes have reportedly affected Turkish-linked vessels as well. 

Ankara has repeatedly raised concerns over the situation, urging both sides to stop the ongoing strikes. Early in August, Turkish Foreign Minister Hakan Fidan called for a “moratorium” on such attacks. “The conflict has spread across the whole Black Sea,” he said at the time, claiming that both Moscow and Kiev have been “attacking all commercial shipping without distinction.”