Rab arrested a teenage boy over uploading distorted pictures and comments on Facebook against the government and high officials in Mymensingh early yesterday.
The arrestee is a student of a local madrasa, said Rab.
Nayeem used to post on Facebook from an ID “Momenshahir Nabin Razakar”, they said.
The arrest was made after a team from Rab-14 had raided the house of Nayeem in Muktagachha area.
In primary interrogation, Nayeem confessed to being involved in the act, they said.
A case was lodged under Digital Security Act-2018.