A combined security force on Monday raided a village in the southernmost province of Narathiwat, detaining 25 suspected separatists.
More than 400 policemen and soldiers surrounded a village in Tak Bai district following a tip-off from locals that suspected militants had been hiding out in the area, local newspaper Bangkok Post reported on its website.
A total of 160 residences were searched in the raid and 25 suspects captured.
Of those arrested, 4 were believed to be members of the Runda Kumpalan Kecil (RKK) militant group while 21 others were believed to be a part of the ongoing separatist movement in the region, the report said.
Weapons were also seized during the raids, including chainsaws and communicative devices.
Thailand's three southernmost provinces -- Narathiwat, Yala and Pattani have been troubled with insurgency-related violence which has claimed more than 2,500 lives since it resumed in early 2004.