A Russian warship sank off Turkey's Black Sea coast on Thursday after colliding with a merchant freighter, the Turkish Coast Guard said.
The Liman, a surveillance vessel, hit a freighter carrying livestock 18 nautical miles (33 kilometers) off the European coastline to the northwest of where the Bosphorus meets the Black Sea, Turkish Anadolu Agency reported.
The crews of both ships were rescued, the Coast Guard added. The reason for the accident remains unknown. 

Source: QNA