The U.S. State Department encouraged Greece and Turkey on Tuesday to ?deescalate? the tensions in the Aegean, after a Turkish coast guard vessel rammed a Greek patrol boat on Monday night near the Imia islets.

?Turkey and Greece have long-established diplomatic channels for addressing Aegean issues. We encourage all parties to take steps that will deescalate current situation. As a matter of principle, the US supports the sovereignty of countries in region including Greece and Turkey,? a spokesperson said, according to a news report on state broadcaster ERT.