The Regional Authority of the Northern Aegean said on Monday that it was taking legal action against a nongovernment organization called Moria Corona Awareness Team after it referred to "the Greek side of the island" of Lesvos in a post on its Facebook page last Thursday, thereby implying that there is a non-Greek side of the island.
Authorities are concerned over a possible spike in migrant inflows after a third boat arrived on the eastern Aegean island of Lesvos since the beginning of May on Sunday, with 36 people on board from Afghanistan and African countries.
The migrants were transferred to a makeshift structure in Megala Therma for 14 days of quarantine.
Migration Minister Notis Mitarakis has argued that his ministry needs "flexibility" in dealing with Greece's migrant crisis since neighbouring Turkey abandoned a 2016 deal with the European Union in late February and lifted restrictions on migrants and refugees from the Middle East, Asia and Africa trying to reach the bloc via its territory.
Athens is on alert over attempts by Ankara to press a revisionist agenda, most recently by issuing navigational warnings (NAVWARNS) which were seen as an attempt to obstruct the Greek naval training exercise "Kataigida '20" that was originally scheduled to begin Monday.
All military exercises were postponed over the weekend amid concern over the spread of coronavirus.
The tension was palpable at the weekend at migrant facilities on the eastern Aegean islands of Lesvos, Samos and Chios, with asylum seekers frustrated as they are not permitted to move outside the camps and are forced to wait in line for hours for food as a result of the problems created by the coronavirus restrictions.
The Castle of Mytilene in the capital of the eastern Aegean island of Lesvos. Authorities are carrying out works to promote the Byzantine site - which findings suggest hosted a sanctuary to Demeter, Kore and Cybele in ancient times before it was turned into a fortress - and improve accessibility to the Lower Castle (Kato Kastro) on the northwest side, which was added by the Ottomans in 1644.
Officials in Athens are trying to make sense of what they see as erratic behavior emanating from Ankara, which on the one hand is requesting a moratorium on military exercises in the Aegean due to the coronavirus pandemic, and on the other is continuing its tactic of low-level tensions regarding the Greek islands.