Photo: Smetlivyy seen here in Sevastopol. Attribution: Водник

BBC reports that a Russian Destroyer (reported as a frigate), the Smetlivy, used small arms fire to drive off a Turkish fishing vessel that was approaching it as the Russian destroyer lay at anchor near a Greek island in the Aegean Sea.

Given the tensions with the Turks and the possibility of Daesh retaliation for Russian involvement in Syria, they were probably thinking about the USS Cole attack.