The two members of the Jamaat-e-Islami Party who were paraded before reporters are being investigated for links with Islamic State which has claimed responsibility for a series of attacks in Bangladesh including the killing of two foreigners.
International schools shut after Bangladesh attack claimed by Islamic State
Nahid Hasan was picked up from Dhaka overnight on suspicion that he was spreading hate and violence on behalf of Islamic State using the pseudonym Jihadi John on a Facebook page, police joint commissioner Monirul Islam said.
"We are verifying whether he actually had contacts with the radical group," Islam said.
The government has consistently denied that Islamic State has a presence in the country and instead blamed religious groups such as the Jamaat for instigating violence in the Muslim but secular nation of 160 million people.
Police said the second man arrested in the overnight raid was believed be behind text messages threatening writers and university teachers who have been targeted by unknown assailants this year.
Bangladesh PM rejects Islamic State link to foreigners' murder
Tensions have been rising in Bangladesh over the trials of people for war crimes during the 1971 conflict and some leaders of the Jamaat as well as its ally, the Bangladesh Nationalist Party, have been executed.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ