Donald Tusk said his presence in the war-divided Cypriot capital is a demonstration of the European Union’s “full solidarity” with member-state Cyprus.
Turkey's Foreign Minister Mevlut Cavusoglu issued his own warning last week that his country would step up drilling activities off Cyprus if the EU forged ahead with its actions.
European Union nations threw their diplomatic weight behind the unraveling Iran nuclear deal on Monday, trying to rescue the pact from collapsing under U.S. pressure.