Turkey's state-run Anadolu Agency reported today that the suspects were caught during police raids in the Black Sea coastal city of Samsun.
They are accused of setting up a factory in Mosul, the IS stronghold in Iraq, where they allegedly produced bombs for suicide attackers.
The arrests resulted from a broader investigation into IS activities by a regional prosecutor in northwest Turkey.
Turkey has suffered a series of suicide attacks linked to IS, which has a network of cells and supporters in the country.
Disclaimer: No Business Standard Journalist was involved in creation of this content