Turkey is preparing a formal extradition request for US-based cleric Fethullah Gulen on suspicion that he organized an attempted coup involving several thousand soldiers, President Tayyip Erdogan's spokesman said on Tuesday.
The Turkish people have made it clear they want death for the "terrorists" who plotted the coup, Erdogan said in his first interview since the July 15 attempt.
The government moved swiftly in the wake of the coup to shore up its power and remove those perceived as enemies, detaining some 6,000 people including a number of generals.
Nevertheless, Yildirim warned Turks against exacting revenge on backers of the attempted government overthrow, after disturbing pictures emerged of rough treatment meted out to suspects.
"Nobody can have a feeling of revenge". His followers run a network of charter schools and cultural centers in the United States and are prolific political donors.
Its leader is the USA -based cleric Fethullah Gulen, a former ally. But they had a falling out in 2013 over a corruption investigation that targeted Erdogan and some of his closest allies.
The removal of thousands of officials has alarmed global observers, with the United Nations urging Turkey to uphold the rule of law and defend human rights.
He strongly condemned any proposed moves to reintroduce the death penalty in Turkey and echoed remarks made by the German government that Turkey would not be able to join in the European Union if it did readopt executions. Akin Ozturk of being the ringleader of the coup, though he told prosecutors he did not plan or direct it.
"I don't know who planned or directed it".
The country's Religious Affairs Directorate has banned religious funerals for supporters of the attempted coup, the Anadolu news agency reported.
Anadolu published images of Ozturk and other suspects on the stairs inside the Ankara courthouse, staring blankly into the camera with their hands tied behind their backs. Mr. Erdogan will need opposition support to pass such a measure.
On Monday, according to Anadolu, prosecutors entered Incirlik Air Base in southern Turkey, which is key to the US -led campaign against the Islamic State group.
He said Friday's coup bid was unprecedented in Turkey's history of military interventions because civilians were targeted.
The coup attempt comes as Turkey, which has NATO's second-largest military by personnel, is engaged in a two-prong war - against Islamic State militants in neighboring Syria and against Kurdish rebels at home.
But it said the vast majority of its forces had nothing to do with Friday's plot.
U.N. High Commissioner for Human Rights Zeid Ra'ad Al Hussein also called for independent observers to visit places of detention in Turkey to check on conditions, and for detainees to have access to lawyers and their families.
"We have a mutual agreement of extradition of criminals", the president noted, demanding a reciprocity from Washington over extradition as Ankara had done so as a "strategic partner".
The reclusive cleric said in an interview at his Pennsylvania compound that he had no concerns about the extradition request.
"The rule of law reigns supreme here. I don't believe this government will pay attention to anything that is not legally sound", he said.
European leaders urged Ankara to follow the rule of law and not allow the country to descend into a dictatorship as President Recep Tayyip Erdogan mooted reintroducing the death penalty - the striking rebuke seen as a further dent to Turkey's long held ambitions of joining the European Union.
The president has remained in Istanbul ever since he dramatically flew back on Saturday to the city from the holiday resort of Marmaris where he was staying when the coup struck.
He told CNN his life had been in grave danger.