Members of Rapid Action Battalion (Rab) arrested two suspected members of banned militant outfit Ansarullah Bangla Team (ABT) from Kaliakoir Upazila in the district early Thursday.
The arrestees are Md Maruf Billah, 20, son of Gazi Md Mizanur Rahman of Songasa area and Md Motaleb Hossain, 25, son of Abul Kashem of Charsongasa area in Sadar upazila of Sirajganj.
Porabari camp Lieutenant Commander Abdullah Al Mamun of Rab-1 said tipped-off they arrested the ABT men conducting a drive in Chandra area.
They also seized two books on militancy and a tablet from them.