Turkish Deputy Prime Minister Besir Atalay said EU-candidate Turkey would freeze relations with the European Union if Cyprus is given the rotating EU presidency in 2012, state-run Anatolian news agency reported.
"If the peace negotiations there (Cyprus) are not conclusive, and the EU gives its rotating presidency to southern Cyprus, the real crisis will be between Turkey and the EU," Anatolian quoted Mr Atalay as telling Turkish Cypriot Bayrak Radio and TV at the end of a trip to northern Cyprus.
"Because we will then freeze our relations with the EU. We have made this announcement, as a government we have made this decision," the agency quoted Mr Atalay as saying.
The internationally-recognised Greek Cypriot government is due to obtain the six-month rotating EU presidency in July 2012.
In July, Turkey's European Union minister said freezing ties with the Greek Cypriot EU presidency was "an option" but Mr Atalay's comments were the first time Ankara has said it would definitely halt relations.
Greek Cypriots represent the island internationally and in the European Union, while Turkey is the only country to recognise the Turkish Cypriot state.
Greek Cypriots say Turkey cannot join the bloc until the Cyprus conflict is resolved.
