A Girl became pregnant in Mexico at the age of just eight.
The girl, now nine and named only as Dafne, has just given birth to a baby girl in Jalisco state, Mexico.
The girl's dad is a lad of 17 - who the nine-year-old's mother says is missing after running away.
Jorge Villasenor, with the state prosecutors' office, said: "We are looking for the young man to get his story because she does not understand what has happened.
"This is a rape or child sex abuse case."
The baby was born on January 27 in Zoquipan Hospital, weighing 5.7lbs.
Mother and daughter have been released and are doing well, but due to Daphne's age the hospital said it would have to do extensive follow-up sessions.
Last year a 10-year-old girl in Colombia gave birth to a baby girl.
The girl - from the Colombian Wayuu tribe - appeared at a hospital when she was 39 weeks pregnant suffering contractions.
Giving birth at such a young age is said to be typical of Wayuu customs.
