A big operation is underway in Istanbul as part of the fight against the movement of Fethullah Gulen, who is accused of being involved in a military coup attempt in Turkey on July 15.
The report said that 125 policemen have been detained during the operation. They are accused of being members of the terrorist organization, Trend reports with reference to the Haberturk newspaper.
More than 20,000 police officers were dismissed after the failed military coup attempt in the country.
