DHAKA (AFP) - Bangladesh police said Monday (July 4) they have formally arrested a detained attacker and one other over a siege at a cafe in which 20 hostages were killed.

"Two people are in custody. We'll file a case," inspector general of police Shahidul Hoque told AFP.

The police previously said six of the gunmen had been killed by the commandos in the final stages of the siege at the Western-style cafe on Friday night, but one was taken alive and another was being interrogated by Bangladeshi intelligence.