Eleven suspected militants have been killed in a series of gun battles with Bangladeshi security forces.
Three locations were raided by counter-terrorism police following a tip off.
Two of the raids took place near the capital, Dhaka, and a third in the Tangail district some 100km away.
The dead are all thought to be members of the banned Islamist group, Jamaat-ul-Mujahideen.
Bangladesh’s minister for home affairs said “the group’s leader in Dhaka was among those killed.”
Police have carried out a number of raids on suspected militant hideouts since a deadly attack in July, when dozens of hostages were killed in a siege at a popular cafe in the capital.
Twenty hostages, two policemen and six suspects died during a 12-hour siege at the Holey Artisan cafe.
The so-called Islamic State (IS) group said “it carried out the attack,” but Bangladesh believes that home-grown Islamists were responsible.