As many as 16 people have been killed and many injured when suicide bombers simultaneously blew themselves up in different locations in Nigeria's Borno state on 19 June.
The first suicide bomber detonated himself near a mosque, killing seven persons. The second detonated himself in a house killing five persons.
No group has claimed responsibility for the attack.
Boko Haram, a militant Islamic group, is known to carry out attacks in Nigeria to impose Sharia, or Islamic law. Borno has been the worst hit state by the insurgency.
There are reports that Boko Haram has been using female suicide bombers to create Islamic Caliphate.