A Russian destroyer fired warning shots at a Turkish fishing boat Sunday in the latest tensions between the two nations, reports Reuters. Russia's Defense Ministry says its warship, the Smetlivy, was just trying to avoid a collision with the unnamed vessel after repeated attempts to warn it over the radio and with what the AP calls "visual signals and flares" failed; the fishing boat changed course quickly after the Smetlivy opened fire, but the two ships came within about 600 yards of each other. Moscow has summoned the Turkish military attache in the incident, which took place in the Aegean Sea, about 14 miles off the Greek island of Lemnos, notes Sky News. (More Russia stories.)