y Nick Tattersall and Humeyra Pamuk

ISTANBUL/ANKARA (Reuters) – Turkey widened a crackdown on suspected supporters of a failed military coup on Sunday, taking the number of people rounded up in the armed forces and judiciary to 6,000, and the government said it was in full control of the country and economy.

Overnight, supporters of President Tayyip Erdogan rallied in public squares, at Istanbul airport and outside his palace in a show of defiance after the coup attempt killed at least 265 people.

With expectations growing of heavy measures against dissent, European politicians warned Erdogan that the coup attempt did not give him a bank cheque to disregard the rule of law, and that he risked isolating himself internationally as he strengthens his position at home.

Broadcaster NTV cited Justice Minister Bekir Bozdag as saying that more arrests were expected on top of the 6,000 people already detained.

Authorities have rounded up nearly 3,000 suspected military plotters, ranging from top commanders to foot soldiers, and the same number of judges and prosecutors after forces loyal to Erdogan crushed the attempted coup on Saturday.

Among those arrested is General Bekir Ercan Van, commander of the Incirlik air base from which U.S. aircraft launch air strikes on Islamic State militants in Syria and Iraq, an official said.

“Control across Turkey has been restored and there are no clashes at the moment,” a senior official said, adding that although a few groups of coup plotters were holding out in Istanbul, they no longer posed a risk.

“There are still a few important soldiers on the run and being sought. I believe they will be captured shortly,” the official told Reuters.

The crackdown appears to intensify a longstanding push by Erdogan to root out the influence of followers of U.S.-based cleric Fethullah Gulen.

Erdogan accuses followers of Gulen, who was once an ally but is now his arch-enemy, of trying to create a “parallel structure” within the courts, police, armed forces and media with an aim to topple the state.

The cleric denies the charge and says he played no role in the attempted coup, denouncing it as an affront to democracy.

A GIFT FROM GOD

Erdogan promised a purge of the armed forces even before the coup attempt was over. “They will pay a heavy price for this,” he said. “This uprising is a gift from God to us because this will be a reason to cleanse our army.”

At a rally late on Saturday, his supporters demanded that the coup leaders be executed. “Let’s hang them!” chanted the crowd in Ankara’s central Kizilay square. Erdogan told them that parliament may consider a proposal to bring back the death penalty, which has been abolished.

Erdogan’s critics say he will use the purge to create a pliant judiciary, eliminating any dissenting voices in the courts.

Some European politicians have expressed their unease about developments since the coup attempt.

“We want the rule of law to work fully in Turkey,” said French Foreign Minister Jean-Marc Ayrault. “(The coup attempt) is not a blank cheque for Mr Erdogan. There cannot be purges, the rule of law must work,” told France 3 television.

Ayrault said European Union ministers would reiterate on Monday when they meet in Brussels that Turkey – which has applied to join the bloc – must conform to Europe’s democratic principles.

European Commissioner Guenther Oettinger said Erdogan would move Turkey away from the core values represented by the EU and the NATO defense alliance – of which it is a long-standing member – if he decided to use the attempted coup to restrict basic democratic rights further.

“He would strengthen his position domestically, but he would isolate himself internationally,” Oettinger, an ally of German Chancellor Angela Merkel, told Welt am Sonntag newspaper.

Some European politicians are also expressing concern about the future of a deal between the EU and Ankara that has helped to slow numbers of migrants crossing from the country to neighboring Greece.

‘NECESSARY MEASURES’

Deputy Prime Minister Mehmet Simsek took to Twitter to attempt to reassure investors that the Turkish government was in full control of the economy before financial markets opened on Monday.

He said it had decided on “all necessary measures” after consulting with the central bank and treasury. He did not specify the measures.

“The macro fundamentals of our country are solid. We are taking all necessary precautions. We are strong with the support of our people and strengthened political stability,” he said on Twitter, adding that he planned to hold a conference call with global investors on Sunday.

The central bank said it would provide unlimited liquidity to banks.

Erdogan supporters waving Turkish flags also thronged the central Taksim square in Istanbul – scene of mass anti-government protests three years ago – and a smaller crowd gathered outside the gates of the his vast presidential palace complex in the capital.

For at least eight hours overnight on Friday violence shook Turkey’s two main cities. But the coup attempt crumbled as Erdogan rushed back to Istanbul from a Mediterranean holiday and urged people to take to the streets in support of his government against plotters he accused of trying to kill him.

The violence shocked the nation of almost 80 million, once seen as a model Muslim democracy, where living standards have grown steadily for more than a decade and where the army last used force to stage a successful coup more than 30 years ago.

It also shattered fragile confidence among Turkey’s allies about security in the NATO country, a leading member of the U.S.-led coalition against Islamic State. Turkey had already been hit by repeated suicide bombings over the past year and is struggling to contain an insurgency by Kurdish separatists.

U.S. President Barack Obama has also urged parties on all sides of the crisis to avoid destabilizing Turkey and follow the rule of law.

FEARS OF CRACKDOWN

A successful overthrow of Erdogan, who has ruled the country since 2003, would have marked another seismic shift in the Middle East, five years after the Arab uprisings erupted and plunged Turkey’s southern neighbor Syria into civil war.

But the failed attempt could still destabilize the U.S. ally, which lies between Europe and the chaos of Syria.

Gulen said the attempted overthrow may have been staged to justify a crackdown.

“As someone who suffered under multiple military coups during the past five decades, it is especially insulting to be accused of having any link to such an attempt. I categorically deny such accusations,” Gulen said in a statement.

Erdogan called on the United States to extradite Gulen. U.S. Secretary of State John Kerry said Washington was willing to help Turkey as it tries to identify those involved, but made clear it would act only if there was evidence against Gulen.

Kerry also warned that public suggestions of a U.S. role were “utterly false” and harmful to relations after Turkey’s labor minister suggested there had been U.S. involvement in the plot.

Erdogan’s Islamist-rooted AK Party has long had strained relations with the military, which has a history of mounting coups to defend secularism although it has not seized power directly since 1980.

His conservative religious vision for Turkey’s future has also alienated many ordinary citizens who accuse him of authoritarianism. Police used heavy force in 2013 to suppress mass protests demanding more freedom.

Erdogan commands the admiration and loyalty of millions of Turks, however, particularly for raising living standards and restoring order to an economy once beset by regular crises.

(Additional reporting by Ayla Jean Yackley in Istanbul, Humeyra Pamuk in Ankara, Michael Nienaber in Berlin and John Irish in Paris; Writing by Nick Tattersall and David Dolan; editing by David Stamp)