Turkey’s President Recep Tayyip Erdogan has extended the period in which suspects can be detained without charge to 30 days, an official statement has said.
The statement also ordered the closure of more than 1,000 private schools and 1,200 associations, the BBC reports.
The decision followed last week’s failed coup attempt against Mr. Erdogan and the subsequent declaration of a state of emergency.
Mr. Erdogan has blamed the coup attempt on United States-based cleric Fethullah Gulen.
Mr. Gulen, who went into exile after he fell out with Mr. Erdogan, has denied any involvement.
The Turkish leader has said the state of emergency will allow the authorities to restore order and deal with the aftermath of the failed coup effectively.
At least 60,000 state employees have been detained or suspended in an internationally criticised purge.
Education ministry officials, private school teachers and university heads of faculty together account for more than half the people targeted.
The schools and associations whose closures have now been ordered are suspected of having links to Mr. Gulen, Turkey’s state news agency Anadolu said.
Other institutions ordered to be shut down included 19 trade unions, 15 universities and 35 medical institutes, the agency said.