Four suspected militants, including a woman, from a group that has pledged allegiance to Islamic State (IS) were killed in a shoot-out on Thursday when Bangladesh police raided their hideout in Chittagong, a senior police official said.

Police said those killed were members of a faction of the Jamaat-ul-Mujahideen Bangladesh group, known as New JMB, which they believe were linked to last July’s attack on a café in Dhaka that killed 22 people, most of them foreigners.

Two policemen were wounded when the militants inside a two-storey building in Chittagong attacked them with at least a dozen grenades, said police official Mohammad Moniruzzaman.