Greek and Turkish jets engaged in a brief dogfight over the Aegean Sea on Tuesday after Turkish aircraft violated Greek national air space several times.

A formation of six Turkish jets, flanked by two CN-235 aircraft that were not in formation, violated Greek air space nine times, according to Greek defense officials.

In all cases the Turkish jets were chased off by Greek aircraft. Two of the eight Turkish aircraft were armed.

The violations were the first since early December following a minor diplomatic spat between the two Aegean neighbors after a message on Greek Prime Minister Alexis Tsipras’s Twitter account accused Turkish jets of repeated transgressions in the Aegean.