"During the anti-crime clampdown we have arrested 8,569 people and of them 119 are suspected militants," Dhaka Police Headquarters spokesman AKM Quamrul Ahsan told reporters.
On the third day of the crackdown by Bangladesh authorities, 3,245 people were arrested until this morning. Of them, 34 were suspected militants, the spokesman said.
During the past two days over 5,300 criminal suspects, including 85 militants, had been arrested. Most of the suspects belonged to banned outfits like Jagrota Muslim Janata Bangladesh (JMJB) - one of two local groups blamed for most of the recent killings - or Ansarullah Bangla Team (ABT).
Bangladesh has been witnessing a string of brutal attacks by Islamists. Islamic State and al-Qaeda in the Indian Peninsula have claimed some of the attacks but the government denies the presence of these groups in Bangladesh.
Prime Minister Sheikh Hasina on Friday told a meeting of her ruling Awami League party that police would stamp out the violence and vowed to catch "each and every killer".
The attacks since last year, which has left more than 30 people dead, has put Bangladesh under a global spotlight for failing to prevent such attacks.
Last week, a 60-year-old Hindu ashram worker was hacked to death by IS jihadists, days after another priest was killed by the same terrorist group in the Muslim-majority nation.
In February, militants stabbed to death a Hindu priest at a temple and shot and wounded a devotee who went to his aid.
