Four members of banned militant outfit Jama’atul Mujahideen Bangladesh were detained with arms from a house at Moghia area of Kochua upazila in Bagerhat early Tuesday.The detained people are Akash, 19, of Kochua area in Bagerhat and Habibullah, 19, Kabirul, 26, Mizanur Rahman, 25 of Pirojpur.Acting on a tip off, Kochua Police Station and District Detective Police jointly conducted the drive in the area and detained them.Ponkoz Chandra Roy, Superintend of Bagerhat Police, said, the detained person were being interrogated at Kochua Police Station.Police also recovered five hand bomb and some materials of making bomb from the spot, he added.