ANKARA, Turkey (AP) — A tanker carrying sunflower oil from Russia to Georgia was attacked in the Black Sea, the Turkish maritime authority said Tuesday, days after two Russian “shadow fleet” oil tankers were attacked by Ukrainian naval drones.

The Turkish Directorate General of Maritime Affairs said the MIDVOLGA-2 came under attack about 130 kilometers (80 miles) off the Turkish coast. The 13 crew members were unharmed and the vessel has not requested assistance.

It was heading toward the Turkish port of Sinop, the maritime authority said in a statement on X.

On Monday, Turkish President Recep Tayyip Erdogan spoke out against Ukraine’s drone attack on two Russian vessels, the Kairos and Virat, saying it signaled a “worrying escalation” of the conflict.