Turkey also said it plans to hire more than 20,000 teachers to replace those who have been fired in a purge of suspected coup plotters in schools and other institutions.
Education Minister Ismet Yilmaz said the new teachers will replace state educators who have been dismissed as well as teachers in private schools with alleged links to Fethullah Gulen, a US-based cleric who has denied Turkish accusations that he directed the coup attempt that killed about 290 people.
Justice Minister Bekir Bozdag said in an interview with Turkey's Kanal 7 television station today that anyone who suggests the coup attempt was staged likely had a role in the insurrection, which was defeated by loyalist forces and pro-government protesters.
There has been some internet speculation that Erdogan engineered the unrest in order to rally support and thereby increase his power, a conspiracy theory rejected by the government and most commentators on Turkey's recent turbulence.
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Turkey has declared a three-month state of emergency to restore security following the coup attempt, granting Erdogan the power to impose decrees without parliamentary approval.
More than 13,000 people, including nearly 9,000 soldiers, 2,100 judges and prosecutors and 1,485 police, have been detained, according to the president.
In addition, Erdogan said, the government has closed and seized the assets of 15 universities, 934 other schools, 109 student dormitories, 19 unions, 35 medical institutions as well as numerous other associations and foundations suspected of links to Gulen's movement.
US President Barack Obama has said there is a legal process for extradition and has encouraged Turkey to present evidence.