A case was filed against four rapists after a suicide note was found in the victim’s vanity bag at Laltek village in Sylhet's Bishwanath upazila on Monday evening.
Police did not disclose the name of four accused.
Shamim Musa, officer-in-charge of Bishwanath police station said the victim’s father Shukur Ali filed a case against the four on Monday evening after finding the suicide note.
The family handed over the suicide note to police while police were trying to arrest the four accused who are on the run.
On 10 October, the 'gang rape' victim hanged herself at home. Police recovered the body and it was buried at her family graveyard after autopsy.
According to family, on 6 October, the victim went to visit her elder sister at Cheragi village in Dakkhin Surma upazila. She returned home on 10 October and committed suicide.
According to the suicide note, when the victim went out at night to respond to natural call the rape suspects picked her up and took her forcefully to another place and raped her by turns.
The victim identified two rapists and wrote their names in her suicide note, said her mother.