Members of Rapid Action Battalion (Rab) yesterday detained two men for their alleged involvement with banned militant outfit Jamaat-ul-Mujahideen Bangladesh.

The duo -- Mohammad Yahiya, 22, and Hujaifa Saad, 20 -- was detained in Brahmanbaria's Sarail upazila around dawn, said Rab.

Additional Superintendent of Police Rofiuddin Mohammad Zobayer, who is also the company commander of Rab-14's Bhairab camp, said they detained the duo in the upazila's Shahbajpur Uttarpar area.

They were detained before they managed to implement their plan of carrying out anti-state and subversive activities on important civil establishments in the area, a press release from Rab read.

Rab also claimed to have seized documents on extremism including two books, two scripts, four leaflets as well as two cell phones and three pages of printed short messages from the detainees.

During primary interrogation, the detainees admitted of campaigning on extremism through distributing leaflets and via cell phone in Sarail and other areas, claimed Rab.

ASP Belayet Hossain, squad commander of Rab-14's Bhairab camp, said a case was filed against the detainees with Sarail Police Station.