Two siblings suspected of being terrorists have been detained during a raid at Tangail's Kalihati Upazila.
The two men were captured from a house in Elenga's Mosinda after being surrounded by the Rapid Action Battalion (RAB) for several hours on early Tuesday.
The brothers, suspected members of the banned Jama'atul Mujahideen Bangladesh or JMB, had been making a drone to carry out attacks, said RAB-12 Commander Selim Mohammad Jahangir, reports a news agency.
The raid also found sharp weapons including large axes, he said.
The two suspects, Nurul Huda Masum, 30 and Mazharul Islam Khokon, 25, are sons of the house's owner Abul Hasan Chishty, said the RAB-12 chief.
Of them, Masum is an "active top-level" militant. Known as 'Kufra Zamana', he studied in a madrasa until the ninth grade. He is a long time member of the JMB.
"The younger brother Khokon used to study in the Islami University at Libya's Tripoli. But he came back in 2012 without finishing his degree. He provided technical support to his brother."
"They told us they were planning to stage attacks with the drone. They meant to target important people and institutions," he said.
The information they divulged during primary interrogation led to the discovery of another hideout currently being surrounded by RAB personnel at Mirpur's Mazar Road.
The raid at Elenga began on Monday evening and was wrapped up following a media briefing around 7:00am Tuesday.