Turkey may hold a Brexit-style vote to decide whether the country should continue moving forward with plans to join the EU, president Tayyip Erdogan has said.
He indicated that any such vote could take place after April 16.
Turkey is slowly moving through accession talks to join the bloc, but discussions have lasted over a decade due to tensions over Cyprus, human rights and other issues.
Relations between Ankara have been particularly strained in recent months as Turkey takes much of the brunt of the refugee crisis and Mr Erdogan faces criticism for attempts to shore up his personal powers.
Turkish President Recep Tayyip Erdogan has also lashed out again in the diplomatic row with the European Union, saying it would be “easier” if the EU just rejected Turkey’s bid to join the bloc.
Turkey and Europe are also locked in a bitter dispute after Germany and the Netherlands blocked Turkish ministers from campaigning in the local Turkish communities for a ‘yes’ vote on boosting Mr Erdogan’s powers in next month’s referendum.
“What? If a ‘yes’ comes out on April 16, they would not take us into the European Union? Oh, If only they could give this decision! They would make our work easier,” Erdogan said at a rally in the southern city of Antalya.
Despite severely strained relations with Brussels, no EU leader has openly said a ‘yes’ vote would spell the end of Turkey’s already-embattled bid to join the bloc.
However Mr Erdogan told the rally that “April 16 would be a breaking point,” referring to EU-Turkey relations if the ‘yes’ vote wins.
“We will put this (EU-Turkey) business on the table because Turkey is no one’s whipping boy,” he added, indicating that Ankara could reconsider its relationship with Brussels.
There has been discussion over what the future of Turkey’s membership process would be among some European politicians.
Kati Piri, the European Parliament’s Rapporteur for Turkey, wrote for Politico Europe earlier this week that if a majority of voters approved the constitutional changes, “the European Parliament will have to assess whether the country’s new governance structure meets the EU’s Copenhagen accession criteria”.
In the referendum Turks will decide whether to approve constitutional changes that would create an executive presidency and would see the role of prime minister axed.
While the government argues it is necessary for political stability and would avoid fragile coalition governments, critics fear it will lead to one-man rule.
Mr Erdogan has repeatedly accused European countries including Germany of using “Nazi measures” – comments that have been condemned by the bloc’s leaders.
“For as long as you continue to call me dictator, I will continue to call you fascist, Nazi,” Mr Erdogan retorted.
Another contentious issue is the death penalty, which the Turkish president said again Saturday he would approve if it was passed by parliament and brought to him.
“What? If the death penalty is introduced for the 249 people killed, Turkey has no place in Europe. Oh, let it not be!” he said, referring to the number of people killed during last July’s failed coup.
Turkey abolished the death penalty in 2004 as part of its bid to join the EU.
However the union has repeatedly made clear that any move to bring it back would scupper Turkey’s efforts to join the bloc.