Counterterrorism officials claimed to have arrested two members of banned militant group "Neo-JMB" from Dhaka's Jatrabari area on Tuesday.
One of the arrestees was identified as Sakib Ahmed Chowdhury alias Jaki, while the other is a 17-year-old boy.
A team of Counter Terrorism and Transnational Crime (CTTC) unit arrested them when the two met in Matuail area, said Saiful Islam, a deputy commissioner of CTTC.
They are active members of the militant group, he said.
Sakib, after graduating from a private university, started working as a freelancer. He used to help finance the militant group through cryptocurrency, the DC said.
Another arrestee used to communicate with others through a secret messaging app for new recruitment.
Both of them have been carrying out propaganda campaigns inspired by violent extremist ideology through social media and other online platforms, CTTC officials said.