The brother of a teenage girl in Quetta has confessed to her rape and murder on Monday.According to police sources, the confession came during initial investigations. His blood sample and other evidences have been collected by police for forensic tests.On Sunday, the 13-year-old was found unconscious in Killi Ismail area of the Balochistan capital. Initial medical examination report confirmed that she was raped before being strangled to death.Rescue teams rushed to the site and shifted the body to Civil Hospital Quetta, where she was pronounced dead on arrival.“Indications of early report suggests that the girl [age 12 or 13] was raped before being strangled,” police surgeon Dr Noor Baloch told reporters. A detailed report will be issued after the post-mortem, he added.SSP operation Naseebullah had said that the DNA sample will be sent to the forensics lab in Lahore for verification. “Statements of her relative and brothers have been recorded,” said the SSP, adding that further investigation into the incident was underway.Balochistan Chief Minister Abdul Quddus Bazinjo has taken notice of the incident and ordered a report from the I-G police. The chief minister gave a two-day deadline to police officials to arrest the culprit.A sharp incline in reporting of such incidents has been observed since the nation grieved the brutal rape and murder of 8-year-old Zainab in Kasur earlier this month.