Last week, Northern Cyprus announced that it would repopulate parts of the abandoned coastal settlement of Varosha.
That would contradict UN agreements.
The EU threatens sanctions.
Istanbul - Turkey has strongly condemned threats of sanctions by the European Union against the country over the recent escalation in the Cyprus conflict.
"These and other unrealistic explanations, which the Turkish Cypriot people ignore and only reflect the view of the Greek side, have neither value nor validity for us," said the Turkish Foreign Ministry on Tuesday evening.
"We fully support all decisions of the authorities of the Turkish Republic of Northern Cyprus."
Cyprus split since 1974
The island has been divided since 1974 after a Greek coup and a Turkish military intervention.
In the north there is the Turkish Republic of Northern Cyprus, which is only recognized by Turkey.
The Republic of Cyprus, which has been a member of the EU since 2004, only controls the south of the island.
Last week, Northern Cyprus announced that it would repopulate parts of the abandoned coastal settlement of Varosha, contrary to UN agreements.
This move had already been condemned by the UN Security Council.
The EU foreign affairs representative Josep Borrell then threatened Ankara on Tuesday with measures on behalf of the 27 member states, unless all actions were reversed that contradict the UN Security Council resolution.
Numerous attempts at mediation
For decades, UN representatives have failed to negotiate to overcome the division of Cyprus.
Ankara sees no more chance of reunification and demands the establishment of two independent states.
In turn, neither the Greek Cypriots, the EU nor the United Nations want that.
dpa