The bombers struck an area with "restaurants, telephone cabins and kiosks", a local official said.
"The town has been sealed off. Nobody can enter and nobody can leave", the source said, adding that some of the wounded were in "quite serious" condition.
Midjiyawa Bakari, the governor of the Far North region where the attack took place, said a baby was among those killed.
Parents of sick infant brace for another court fight
The Terri Schiavo Life & Hope Network has advocated for more than 2,500 medically vulnerable patients and families. He said the plan was for a specialist in the USA who was offering therapy to give evidence by a link from the US.
"A teenage female suicide bomber actually crept to the sandbag post of our boys at Molai, and before they could realize what was happening, she detonated herself and killed three of our boys", defense force spokesman Danbatta Bello told the AP.
Boko Haram, a Nigerian militant group, has continued to attack soft targets in the country's northeast region despite claims by the military to have defeated the insurgents.
In eight years, Boko Haram attacks have killed more than 20,000 people in the Lake Chad region, including Nigeria, Cameroon, Chad and Niger and, according to the latest United Nations refugee agency figures, displaced 2.7 million. As NPR's Merrit Kennedy reported earlier this year, UNICEF believes Boko Haram has used at least 117 children in suicide attacks, 80 percent of whom were girls. Almost 200,000 citizens of the Far North region have reportedly fled their homes due to the violence.
Top US diplomat to return to Qatar for talks with emir
But Tuesday's initiative met a dismissive reaction from the Arab countries that imposed sanctions on Qatar last month. Qatar has so far denied any wrongdoing.
Two bombers, suspected to be members of the Boko Haram, blew themselves up in a busy market town in Cameroon today.
Suicide bombers killed 17 people and injured 21 in the northeast Nigerian city of Maiduguri, the police commissioner of Borno state said on Wednesday.
Boko Haram this week released a video showing executions and amputations, suggesting it still holds territory in some areas.
Noida Society Attacked by Mob After Resident Allegedly Beats up Maid
According to media reports, this maid was beaten up by one of the residents of Mahagun Moderne society. The employers have been shifted, by the complex's security guards, to an undisclosed location.