At least five people were killed on Tuesday in the town of Damaturua in northeastern Nigeria, after two suicide bombings were carried out in two separate locations, police and witnesses said.
One attack, which killed five people and wounded more than 41 others, was carried out in a crowded entrance to the town's main bus station by a female bomber who looked around 14 years old, said Assistant Superintendent Toyin Gbadegesin.
In another attack a young male suicide bomber killed only himself as a device he was carrying exploded prematurely, witnesses said.
Boko Haram has in the past used women and girls to conduct suicide attacks, making the group the chief suspect in the latest attacks. Fears have been raised that the group is using victims of kidnappings in the attacks.
Nigeria - alongside its military coalition partners Niger, Chad and Cameroon - has claimed recent successes in fighting Boko Haram since February, forcing the group’s fighters out of the territory it used to control.
Chad announced two weeks ago that its forces killed 117 Boko Haram militants in a two-week military campaign to clear the islands on Lake Chad, which militants use as hiding-places and bases from which to launch attacks.
More than 600 people have been killed by Boko Haram attacks in Nigeria alone since President Muhammadu Buhari, who based his presidential campaign on defeating Boko Haram, took office at the end of May.
Buhari vowed to eliminate Boko Haram after he was sworn in and flew to the United States to meet with President Barack Obama to ask for increased US military assistance in fighting the militant group.
Boko Haram has been fighting a six-year insurgency attempting to establish a state of its own in northern Nigeria that is responsible for the deaths of over 30,000 civilians and security personnel and which has caused about 2 million people to flee their homes.
The leader of Boko Haram in Nigeria Abubakar Shekau was replaced last week by Mahamat Daoud, who had not been heard of previously.