New Delhi: The brutal gang rape and murder case of Haryana's Nirbhaya - a 28-year-old mentally unstable Nepalese woman - was cracked by the police with the arrest of eight persons.

The ninth accused, who was on the run, consumed poison and died at one of his relatives' house in outer Delhi's Bawana village soon after the news spread about the arrest of his accomplices.

After the interrogation the police have revealed some chilling details about the crime. As per sources quote by TOI, all the nine accused gang raped the women for three hours and later killed her by using bricks and inserting pieces of asbestos sheets into her private parts. The accused raped the women even when she was unconscious.

Special investigation team led by Amit Bhatia said police were interrogating accused Rajesh alias Ghuchadu, Sunil alias Sheela, Sarvar alias Billu, Manbir, Sunil alias Madha, Pawan, Parmod alias Padam (all residents of Khedi Gaddi village in Rohtak district) and Santosh (a native of Nepal who lives in the same village).

According to police officials, when the women reched Khedi Gaddi around 7 pm on February 1, five of the nine accused were having liquor at a roadside hotel.

A source close to the investigators was quoted by TOI said, "They spotted the woman when she crossed the hotel.They followed her and ultimately caught her. Meanwhile, two more youths reached there. They then took her to a room situated in the fields. The youths started raping the woman and called two more friends by making phone calls to them. They also joined them in her sexual exploitation."

When the accused realised that the room was too close to the national highway , they shifted the woman to another room situated in the nearby field. They kept raping even after she fell unconscious.

The accused were scared the woman would inform the police about the crime and they would be arrested. "Then they decided to kill her," said the source. "They took her to the fields of neighbouring Bahu Akbarpur village, where they killed her by using bricks. To ensure her death, they even inserted pieces of asbestos sheets."

The doctors who conducted the postmortem also found pieces of condoms and a stick inside the woman's private parts. The woman's body had been found on February 4.

The woman was living with her sister at Chinyot Colony in Rohtak while undergoing treatment at a hospital, was reported missing on February 1. After her mutilated body was found three days later, an autopsy confirmed brutal rape.