Murtala Ibrahim with the Borno police command confirmed the attack last night in the Borno state capital of Maiduguri.
The violence came a day after three other female bombers tried to attack a military outpost but were killed by soldiers.
The Boko Haram extremist group, which has ties to the Islamic State group, has increasingly used girls and young women to carry out attacks on marketplaces, checkpoints and other targets.
Some young women who escaped Boko Haram have said girls are drugged and forced to carry out suicide missions. Boko Haram was founded in northeast Nigeria and is now active in Chad, Niger and Cameroon as well.
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