Anti-terrorism teams from the Hakkari police Department carried out simultaneous operations in a number of locations in the early morning hours. Among the 16 detained were officials from the pro-Kurdish Peace and Democracy party (BDP).
The detainees were taken to the police stations for interrogation. It was not immediately clear whether the 16 people were to be arrested or set released.
The investigation into the KCK, which prosecutors say is an umbrella organization for the terrorist Kurdistan Workers' Party (PKK) and other affiliated groups, started in December 2009 and a large number of suspected KCK members, including several mayors from the BDP, have been detained.