Russian warships and Turkish commercial vessels have had run-ins on consecutive days, adding to tension between the rival powers.
On Sunday, the Russian Ministry of Defense announced that one of its destroyers in the Aegean Sea was forced to fire warning shots at a Turkish fishing boat because the boat was approaching dangerously close to the warship. The MoD immediately summoned Turkey's naval attache to Moscow after that incident.
Then on Monday, a Russian corvette and coast guard boat forced a Turkish commercial ship in the Black Sea to change course because it was in the way of a Russian oil-rig towing boat.
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