An investigation revealed that the accused started raping his sister in December last year (Representative Image). | Photo Credit: Getty Images

Key Highlights On Sunday, a 15-year-old boy was sent to an observation home for allegedly raping his sister The accused had been raping the 14-year-old girl since December last year The 15-year-old boy has been booked under the POCSO Act

Chennai: The police in Chennai arrested a 15-year-old boy on Sunday for allegedly raping his minor sister repeatedly. The accused tied his sister's hands and legs before performing the obscene act. He has been sent to an observation home.

The survivor is 14-years-old. The incident came to light when the girl opened up to her school friend and narrated her ordeal. After listening to the 14-year-old girl's plight, her friend contacted her parents and a complaint was lodged. The girl's mother has separated from her husband and is married to another man. The two siblings and their mother live with her second husband.

Repeatedly raped, threatened

An investigation revealed that the accused started raping his sister in December last year. He allegedly used to sexually abuse the 14-year-old girl when they were alone at home. According to the police, the accused had raped the 14-year-old girl on multiple occasions.

The minor girl had stayed mum about the abuse as her brother had threatened her with dire consequences. After learning about the incident, the girl's family turned to the police and lodged a complaint against the accused.

The Villivakkam all-woman police station registered a complaint and took the two siblings for interrogation, The Times of India reported. After conducting the interrogation, the police booked the accused under the Protection of Children from Sexual Offences (POCSO) Act.

5-month-old baby girl raped by cousin, dies during treatment in Lucknow

In February this year, a five-month-old girl died after she was allegedly sexually assaulted by her cousin. The girl's cousin, identified as Pappu, allegedly took her away to play with her.

When Pappu did not return with the child for a long time, the girl's mother panicked and started searching for her. Meanwhile, the guests also started looking for Pappu but he could not be found anywhere. The minor girl, however, was found at a short distance from the venue. The girl was taken to the Vivekanand Hospital from where she was referred to the trauma centre. The girl succumbed to her injuries while treatment was being administered to her.