A mentally-disturbed Lebanese woman attacked her own daughters at their home in Machta Hammoud north of the country, according to Almarsd.
Roqayya Al Assaf, in her 20s, slit the throats of the siblings Aisha and Sarah, aged 9 and 6 respectively, with a kitchen knife, while they were sleeping.
The elder sister died on the spot while the younger one survived and is said to be in a stable condition in hospital.
The mother went to the nearest Lebanese army checkpoint and surrendered.
The mother of two reportedly attempted to commit suicide about a year ago.
(With inputs from Daily Star)