Police arrested the 50-year-old man in of Poli, a village in Yamaltu Deba LGA of the state.
The suspect, Hamza Musa was arrested at Kwadon market on Monday where he was selling local sweets (alewa) by officials of the Kwadon branch of the State Social Welfare Office.
The young girl, who hawks local beverages at the village, was discovered to be six weeks pregnant and also found to be HIV positive after her father Malam Abdullahi also of Poli village took her to a hospital in Kwadon for medical check-up when she was sick.
A source at the hospital said when medical personnel at the hospital failed to convince her to reveal the person responsible for her pregnancy, they handed her over to the officials of the Kwadon office of the social welfare office, who subsequently arrested the first suspect, one Hamza Musa.
Head of Kwadon office of the social welfare, Malam Abdullahi Maina, said after thorough investigations, they arrested seven other suspects who were also alleged to be sleeping with the girl, who hawk local beverages in the village.
Maina said two of the suspects from Kuri village, two from Poli village and three from Kwadon town, all confessed to having affair with the girl, but they were tested and found to be HIV negative.
The first suspect, Hamza Musa confessed to the crime and blamed the devil for pushing him to perform the act.
The suspects were reportedly released on bail.