The Rapid Action Battalion on Sunday claimed that they detained three operatives of banned extremist outfit Jamaatul Mujahideen Bangladesh at Puthia upazila in Rajshahi.
Identities of the detained persons could not be known immediately.
A team of RAB-5 arrested the trio in a drive at Jamira, read a text sent by the battalion.
The battalion personnel also recovered arms, ammunition, gunpowder, crude bombs, bomb making materials and books related to extremist from them, it added.
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