A 15-year-old in the Maldives whose father is accused of repeatedly raping her and killing the resulting baby risks being flogged for "fornication" with another man under the nation's strict Islamic law, a police source said on Monday.

In the course of inquiries into the rape case, investigators say they unearthed evidence of the girl having had consensual sex with another man, which is an offence in the Indian Ocean holiday destination, the source told AFP.