A 13-year-old girl and her 15-year-old boyfriend are charged with Conspiracy To Commit Murder after the two plotted to kill the 13-year-old's mother, according to the Scotland County Sheriff's Office.
Officers say the girl's mother called deputies after she found messages on her daughter's Facebook account that revealed the plot.
The names of the teenagers and the victim aren't being released.
The teenagers are being held at the Cumberland County Regional Juvenile Detention Center.
The investigation is ongoing.