Bangladesh says the recent arrest of several militants is a major breakthrough in efforts to crack down on an Islamic militant group blamed for recent bombings.
Meanwhile, security forces have tightened security in the capital to counter possible terrorist attacks on the eve of the 34th anniversary of the victory in the 1971 war of independence against Pakistan.
Officials say security forces will cordon off a national memorial at Savar, on the city outskirts, where top leaders traditionally gather to pay their respects. At least 30 people have been killed and over 200 wounded in a spate of suicide bombings since August that authorities have blamed on Muslim fundamentalists led by the outlawed Jamaat-ul-Mujahedin group.
On Wednesday, Bangladeshi authorities arrested the operations commander of the group, and two other militants in a raid on their hideouts.
Amir Khasru has more on the story.