ISLAMABAD, Sept 6: A police officer has been arrested in Rawalpindi and hunt for two others in a gang-rape case in the second case in a week, police sources told Dawn late on Tuesday.

A woman, resident of Dhok Choudhrian, lodged a complaint with the Airport police that an assistant sub-inspector, Ilyas Kalyar, two constables, Mohammad Sadiq and Bilal, gang-raped her in her house on Sunday.

On the directives of assistant superintendent of police,

Civil Lines, an FIR has been registered against the accused.

The medical test on the victim was done in the Rawalpindi General Hospital and the report is due to be released soon.

District Police Officer Saud Aziz told the BBC that three constables had absconded.

He said that a sub-inspector had been arrested in connection with the case.

The woman alleged that the police officials had arrested her husband and demanded a bribe of Rs100,000, a BBC website reported.

The victim said she paid the police Rs30,000 after which her husband was released but the officials continued demanding the remaining amount.

She accused the four officers of then barging into her house on Sunday and raping her after locking her husband and uncle in another room in the house.

The case comes after Prime Minister Shaukat Aziz and Supreme Court Chief Justice Iftikhar Chaudhry ordered separate inquiries into the alleged rape of a woman in Faisalabad, BBC reports.