The girl, identified as "Dafne" by The Telegraph, reportedly delivered a 5.7 pound baby by cesarean section on Jan. 27 in Zoquipan Hospital in Jalisco, an area in western Mexico.
The girl was 8 years old when she became pregnant. "This is a rape or child sex abuse case," Corona added, according to the Agence France-Presse. The age of sexual consent in Mexico is 12, according to UNICEF.
"The father is a boy who is 17, but we have not found him, since he ran away," the mother of the girl told officials, according to the AFP.
“Due to her young age, we don’t know if she is being entirely truthful,” Lino Ginzalez Corona, spokesperson at Jalisco State Prosecutor’s Office, said in a press conference, ABC reports.
The new mother is one of 11 children, according to ABC, and her parents were unable to watch her while they worked.
There have been only a handful of recent reported births among children this young, including a 10-year-old Colombian girl who gave birth last year, and a 9-year-old Chinese girl who gave birth to a healthy baby boy in 2010.