Anti-terror teams launched simultaneous raids at 27 addresses in Turkey's biggest city Istanbul, the southeastern provinces of Batman and Sanliurfa, and the southern Adana province against a total of 21 suspects, the state-run Anadolu Agency said on Tuesday.
Those targeted in operations were believed to provide financial support for Daesh and act on behalf of the terrorist group in Istanbul, it noted.
So far, 18 of them have been detained and operations are going on to apprehend the remaining three, according to Anadolu.
Daesh has conducted a spate of deadly attacks in Turkey since 2015. Turkey's counter-terrorism units in response have been conducting operations against the group's members in the country.
Source: Xinhua