Turkish forces held at least 180 irregular migrants in the southern Antalya and southwestern Muğla provinces, officials said on Friday.
According to a statement by the Antalya governor's office, the migrants include 37 Afghans, 23 Pakistanis, eight Syrians, and two Iraqis.
An operation is underway to arrest those who might have been involved in smuggling of the migrants, the statement added.
In two separate incidents in Muğla province, 103 more irregular migrants were held by the Turkish Coast Guard.
Four people in the province were arrested for alleged human smuggling.
The migrants will be transferred to concerned provincial migration management directorates.
Turkey has been a main route for irregular migrants trying to cross to Europe, especially since the beginning of the Syrian civil war in 2011.