On 20 March, a teenager caught her father raping her disabled sister in their home in Segamat
The 19-year-old sister, who attended the same school as the victim, was told that the victim was frequently absent from classes.
Xtra reported that she was contacted by the school after their father was allegedly uncooperative in providing a reason for his younger daughter's prolonged absence from school.
Segamat district police chief superintendant Raub Selamat was quoted by New Straits Times (NST) as saying that the sister then went home to check on the victim and found her father raping the victim in the bedroom.
On the same day, the elder sister lodged a police report against her father with the help of a relative
"The elder sister with the help of a relative had then come to the police station to lodge a report," Raub was quoted as saying by NST.
"The act has been happening during morning hours over the last two years without the elder sister's knowledge," Raub added, before noting that she never realised her sister was absent at school.
Xtra reported that the 50-year-old father, whose wife passed away a few years ago, was arrested nine hours after the police report was made.
Medical checks on the victim found old and new tears on her private parts
According to Raub, the victim had gone through medical checks at Hospital Segamat.
The father is being investigated under Section 376B of the Penal Code for committing incest.
Last week, a 16-year-old was arrested in Kedah for allegedly impregnating his 13-year-old girlfriend: